These are recommendations made by Tropers for Katekyo Hitman Reborn! fanfics, all of which have to be signed to stay on the page. Feel free to add a fanfic of your own to the list, but remember to use the template found here.
You can also add to the current recommendations if you want. Refrain from posting Conversation In The Main Page though; that goes in the discussion page.
Don't be fooled by the Romance genre labeling most of her stuff; it's hardly ever the real focus of the story. (The semi-serious ones, anyways.) Most famous for her humorous works, which carry her bizarre, yet lovable sense of humor, she also writes for the Horror and Fantasy genres. And exceeds all expectations. This troper finds practically anything she writes to be godly; especially Kindergarten Warfare and Wolf Me Down.
Someone with an obvious preference for the unusual, she's alarmingly good at both terribly dark and hilariously light genres. There's never a dull moment in her stories, so prepare yourself to be glued to the computer until you're finally finished reading everything that suits your tastes. (And even some that don't.)
A simply spectacular author in a fandom that has been admittedly lackluster as of late. Her style mostly relates to genfics, all of which are interesting enough to become addictive after a while. She's very good at focusing in on characters, which provides a lot of truly thought-provoking insight. I recommend her fics wholeheartedly.
Very talented, but not an author you want to spend time reading all at once. Many of her fics reuse lines verbatim, which can become rather irritating over time.
This author manages to incorporate a lot of realism into the crazy world of Reborn! without ever losing sight of the characterizations. Her fic What We Fought For in particular is a must-read. It plops the characters into the middle of the brutal (and in a way, mundane) world of Italian organized crime as it is today and just let it rip.
Synopsis: A tree grown from poisonous soil will always bear poisonous fruit. Ten moments for the each Vongola's cursed lineage.
Comments: A wonderful look into the life of a woman with very scarce canon coverage. The author's headcanon mixes beautifully with actual canon, and the subject of the fic, Ottavo, doesn't come across as a Possession Sue at all, as is usually the fate of these sorts of fics. The author's use of symbolism also makes this fic very much worth your time.
Synopsis: Three and a half years. Since the fights against Shimon. Since the Ninth took up residence in Namimori. Since Tsuna finally got tired of the mafia and disappeared. But now he's back to bring his friends out of their own hells, and maybe save Namimori too.
Comments: This is an M-rated fic, though there won't be any lemons. I will readily say that this is even better than the manga itself. It's over 100,000 words, for those of who you like short ones, but this one is definitely worth it.
Synopsis: Ineligible Sawada Tsukiko not only put her honor at stake when she signed up for the war, she also signed the contract to harsh training, being the target of bullying and... love!
Comments: Don't be fooled - this isn't another Cookie Cutter Fic with KHR characters replacing the Mulan characters. It's much, MUCH more than that. I don't wanna spoil anything, so my best advice is to read it for yourself.
Status: 2 stories complete, part of a series that may be ongoing (?)
Synopsis: Building a Legacy (the first story in the series): First is holy matrimony. Next comes fatherhood. Sawada Tsunayoshi, Tenth Generation Leader of the Vongola Family, experiences both—though he is admittedly unprepared for the latter (and with the infamous Reborn as the self-claimed Godfather, who could blame him?) From choosing a suitable name, to keeping track of all the baby's firsts, being a Papa is hard, hard work. But thankfully, his Family is ever-so ready to help.///The Totally Fictitious But Rapturous Love Story of Rokudo Mukuro and Hibari Kyouya (second story in the series): To be honest, a conventional love story this is not. To be perfectly honest, “love story” might even be a bit of a misnomer. In all seriousness though, “vaguely obsessive and somewhat stalker-friendly story” just simply doesn’t sound as good as “love story.”
Comments: Both these fics are absolutely fall-off-your-chair hilarious and I couldn't recommend them more. They're brilliantly well-written and, though on the slightly longer side, are impossible to stop reading. Slightly on the crack-fic side but the entirety of Reborn is cracky enough that it's plausible and in-character. I believe I am a happier person for having read these fics, honestly. They're that funny.
Synopsis: After an accident with an experimental bullet, Tsuna finds himself in a dire situation; everyone is infatuated with him! With friends and enemies now desperate to steal his heart, can the Vongola Tenth survive until the effects wear off? If they wear off?
Sypnosis: Mary Sue has invaded Namimori, releasing Sue-beams into the air that has turned all our favorite bishies into complete drones! Only the girls are unaffected by the Sue! Will you be able to help them save the boys and take down the Sue?
Comments: Although you might be wary of the second person point of view, take into consideration that this is a great parody of Mary Sues. With Shout Outs to various tropes and TV Tropes itself, be prepared for a hilarious story with plenty of Lampshade Hanging.
Synopsis: A series of stories that pick up after the Varia arc and turn into an alternate story-line instead of following into the Future Arc. Tsuna gains even more power through very risky means and ends up in big trouble with an unknown enemy. After that's done, he is then put under training under the 9th to become the next boss of Vongola, which means getting enrolled at a mafia school, getting trained to kill with Xanxus as his mentor, of all people, and experiencing everything a Crapsack World like the Mafia has to offer.
Seconded. So very much. There are no words to say how captivating this story gets once you get into it. The pace slows considerably in the latter two parts, but the plot itself is more than enough to keep a person at the edge of the seat from start to finish and as of part two, it sometimes gets so overwhelming that it's difficult to believe how little things suddenly become incredibly important. About the worst flaw I can think of in this story is the sheer amount of O Cs, but they're neither flat or unlikable. Hell, all the characters are given the depth and it's particularly interesting to see some of the subtle parallels between ashes' world and Amano's Future Arc, although characters like Byakuran make no appearance other than just being occasionally mentioned. The best thing about the story have got to be the characters, however. They evolve and they change and yet they do not change enough to be unrecognizable. And as a bonus, they're all flawed. So very much that it's sometimes difficult to just swallow it all without feeling the need to cry. Ashes goes to great lengths to show the dark and more realistic side of the Mafia and life in general and her time's not been wasted. Darker and Edgier taken Up to Eleven indeed.
Synopsis: In a different world, Tsuna had a different Sun guardian - Kyoko.
Comments: An amazing oneshot based around the idea that instead of Ryohei becoming Tsuna's guardian, Kyoko does in his place. Despite the fact that they're alike in personality, how Kyoko sees and handles things is a lot different than Ryohei, and the characterization throughout the story is spot-on. It's not just interesting, it's believable, and makes you really wonder What Could Have Been. Covers the time from the beginning of the manga up through the Varia arc and into the future arc, and leaves you wanting more.
Synopsis: Sawada Tsunayoshi was unassuming. Resourceful. Surprisingly adaptive. A little inept when it came to dealing with romantic affections or unwanted attention. And his hyper-intuition hasn't been wrong yet. Regardless, he didn't need that indication of doom to know that Reborn was the harbinger of utter chaos.
Pairings: None so far, and doubtful if there ever will be.
Comments: What do you get when you make Tsuna aware of the Mafia from a young age and exposed to things like Doctor Who? A near genius-level hacker and Deadpan Snarker that's apparently a "Mafia-magnet." And still finds time to fail Algebra. Written with the kind of clever, yet random humor that has you grinning silly for hours while you applaud the writer's wittiness, and overloaded with shout outs and quotes that we all know you've heard before. It also holds a plethora of OCs that are just so lovable and unique, you might find yourself cheering for them more often than the actual canon!characters.
Synopsis: It has been a year since the Representative War ended, since Reborn and the Arcobalenos died. Now Tsuna, in the third year of middle school, has accepted his role fully as Decimo. But what are seven supposedly dead people doing in Namimori? Are they truly the Arcobaleno? Or are they simply familiar strangers? An AU of the end of the Curse of the Rainbow Arc.
Sypnosis: It began on the night when Hibari popped out of his wardrobe. Then from under his bed, his kitchen cabinets, the janitor closet, and trashcans. And as he grew older, slowly but surely, little Tsuna's fear became something akin to love. /Eventual 1827/
Status: Dormant (Complete sans Epilogue)
Pairings: Hibari/Tsuna, Implied various minor pairings.
Comments: A long and lengthy fic that starts out with hints of WAFF between the titular character, "Boogie Man" Hibari, and an adorable little Tsuna. Gets Darker and Edgier as it progresses, and even the most minor details become Chekhov's Gun. Filled with delightful twists and a well-written plot, this story is simply amazing. Plot Holes are filled, the Alternate Universe the author has created is reminiscent of canon, and the Character Development that every character gets is remarkable. You will be transfixed by this wonderful story.
Synopsis: Reborn had never disagreed with any of the ninth's decisions, but when the Vongola boss sent him to Japan to train Sawada Tamaki, the hitman started to think that the ninth had chosen the wrong twin…
Comments: There have always been a great many fics that talk about Tsuna having a sibling (most notably a girl), but this one really takes the cake. Tsuna and his twin brother are portrayed as complete foils to one another, and at a first glance, Tamaki is the better candidate, but after a while, Tsuna really shows as the more suitable candidate for the Tenth Vongola. This fic also focuses on how Tsuna gradually becomes friends with Gokudera, Yamamoto, Hana, and many more. Also, a lot of angst, frustration, and tear jerkers on Reborn's part when he realizes that Tsuna's better than Tamaki. The writing is beautiful, and the fight scenes are also well-written.
TheRoad: Read it. Couldn't really get into it. The plot is a thing that exists, but actual character development just doesn't seem to happen. I think I made it about 70~80k words in— that's the length of your average novel. Even though the plot itself advanced, Tsuna never really changed. And neither did Tamaki. While the author is technically skilled, the glacial pace of character dev was just too frustrating for me.
doublegemini: I kind of have to agree with The Road. I read up to the latest chapter and I have to say that the characterization of Tsuna's little brother seems a little forced. His character development also get's shoehorned in a single chapter and Tsuna is starting to turn into a gary sue. It's still a pretty good fanfic overall, this troper just kind of wishes that Tamaki was a more believable character.
Synopsis: Everyone has potential. For some, this potential will remain unrealized. For others, this potential may surface. And for Sawada Tsunayoshi, this potential was brought forth much earlier before his teenage years with the baby mafioso Reborn. AU
Comments: A really different take on a change in events of Tsuna's childhood and the butterfly effect that follows
Synopsis: Primo Fic! What if the Primo gen reincarnates as Tsuna & Guardians.
Comments: Given the canon Time Travel plus character design reuse, why are there not MORE fics like this? I particularly like the fact that Giotto is NOT an uberSue who gets EVERYTHING perfect and right with Super!Intuition and still has to get used to present day and building up his child's body/stamina. Of the Primo Gen, Alaudi and Ugetsu are known to be reincarnated as Hibari and Yamamoto for sure, hints of Knuckles = Ryohei but no actual appearance, and neither Lambo nor Gokudera have shown up ... yet.
Synopsis: Sawada Tsunayoshi is ordinary. Average. Not at all special in any way. So while having ties to the mafia comes as a surprise to Tsuna, the fact that his younger, more talented, more popular twin brother is chosen as the next Vongola boss doesn't. Not everyone agrees though. After all, what is a world without a proper sky?
Comments: Features a very timid Tsuna and incorporates side characters e.g. Hana, Mochida(Kendo club captain). Unfortunately this fic hasn't updated since August '012
Synopsis: A few months after coming back from the future, an unfortunate accident causes Haru to lose her memories, and sends Hayato on a collision course with his past and the memories he's buried and tried -but failed- to forget. Goku Haru; 5986.
Pairings: Main - Gokudera/Haru , Minor - Tsuna/Kyoko, mentioned Ryohei/Hana, implied Ken/Chrome
Comments: Nothing short of amazing story. There is character development in both central characters and the two characters (Gokudera and Haru) unlike some fics truly fall in love with each other. It's believable and sweet. The plot itself is very well-thought out. It's dormant, having not been updating in some time.
Synopsis: Primo Gen Fic! The story of the founding of the Vongola Family and Primo's eventual exile to Japan, as told by G. Slightly unreliable narrator.
Pairings: Giotto/G, Giotto/OC, D/Elena
Comments: Need more good Primo Fic like this - I don't agree always with the author's portrayal on Mist and Cloud Guardians, but she definitely sets a distinct tone to all the Primo and sets them apart from the Decimo Gen. Do Not Miss the Kewl Reference Notes at the end.
blueblood: Seconded! One of my favorite KHR fics. G is hilarious and, while he is a somewhat unreliable narrator, the characterization of the Primo Generation through his eyes rings true. It's also nice to see the Primo Gen written with personalities that differ from those of the present-day Vongola. Metisket also has a few other Reborn fics that are quite good.
Synopsis: A beautiful, heartwarming tale of how Squalo and Xanxus surmount their relationship of tyrannical boss and whipping boy, and become best friends forever via human trafficking, falling couches, and dead goldfish. Xanxus x Squalo
Comments: I cried laughing. This story follows Squalo through his entire childhood and early teenage years up until the point he meets Xanxus and tries to decide whether to kill him or kiss him, etc. etc. It's morbidly hilarious and incredibly well-written, and while it deviates from Xanxus and Squalo's canon backstory somewhat, is still a wonderful interpretation of their relationship. If by 'wonderful' I mean an unmitigated disaster. It's awesome.
Synopsis: The Shinobi Age is long gone, but due to forces outside his control, one Uzumaki-Namikaze Naruto is still alive and kicking. But when one lives forever and wields enough power to take a country off the map with ease, boredom is a dangerous thing. After centuries of wandering alone, the Vongola becomes the latest victims of one blond, immortal shinobi.