There was considerable Clark Kent - Lois Lane teasing in Krypton No More. Lois is jealous when a co-worker flirts with Clark and decides to pursue him aggressively. She even calls him her man.
In Greg Pak's Action Comics arc, "What Lies Beneath", there's quite a lot of hinting that Clark and Lana Lang are still in love with each other. to the point that Ukur even lampshades it, claiming they smell like a mated pair.
Jonathan Samuel Kent has been teased with Kathy, his only friend in Hamilton after the Kent family move there. He trusts her enough to be his secret keeper and they frequently hang out, clearly enjoying their time with each other. Even after it was revealed that she was deceiving him the whole time, she cherished Jon enough to ultimately try to defend him from Manchester Black, later going so far as to forcibly remove Manchester's consciousness from his body. Afterwards, they part on amicable terms and are implied to talk to each other on the phone from time to time.
Aquaman (1986) teases Nuada and Arthur as a potential couple, though it doesn't go anywhere after this storyline.
Batman and Wonder Woman have gotten this before, but never so much in Tom King’s run where issue 40# of Batman (Rebirth) has them realise their UST and try and cope with it. The fact that Catwoman (Bruce’s main Love Interest) is genuinely jealous of how close Diana is to Bruce and considers her a rival for his heart, speaks volumes.
Batgirl (Rebirth): Although they haven't gotten back together, Batgirl and Nightwing are teased heavily, to the point Black Canary says Babs unconsciously thinks no man other than Dick is good enough for her. The two recently got back together again in the current Nightwing run.
Batman Family started the idea of the Dick/Barbara pairing... although it was pointed out both in the comic and the letters page that Barb was older than Dick by a good 7 years.
In Streets of Gotham, Damian asks Dick if Katana is seeing anyone. When Dick points out that Katana is a grown woman while Damian is only a child, he shrugs it off.
DickGrayson generates this every time he shows up in a book that stars a female character. His appearances in Supergirl and Power Girl are very notable among the shipping fandom.
Green Lantern: Between Hal Jordan and Pengowirr, who is actually the AI of his power ring, in The Green Lantern. Morrison and Sharp even describe her as Hal's true love.
JSA Classified: Alan Scott and Jimmy exchange what can be oh so easily taken as a flirtatious exchange while leaving their shared sleeper room aboard a train, right before Jimmy was killed in an explosion. This romantic relationship was eventually revealed to be cannon, but hidden given the time period, following DC Rebirth bringing both characters back into continuity.
Nico and Karolina from Runaways, especially in the first issue after Terry Moore's run ended. After a game of "truth or dare" leads to Karolina stealing a magic staff from a bunch of white supremacists. Nico tells her "You pretty much always amaze me" with the two of them staring at each other. When pressed on whether Karolina, Victor or Chase is the better kisser, she eventually snaps and admits "Karolina". This is despite that they never actually got beyond Almost Kiss... as far as we know. Oh, and it ends with her chiding the boys for being "such 'phobes" while she and K have Intertwined Fingers.
Uncanny Avengers has Rogue and Deadpool playing this trope big time. Rogue couldn't stand him at first, but they slowly developed a genuine bond -enough so that Wade takes Rogue to see his daughter, whom he asks Rogue to watch over if she becomes a mutant. Rogue readily agrees to have Ellie's back. In addition to shared moments here and there between the two that hint at deeper feelings. It finally comes to a head in chapter 22, when Rogue gives him The Big Damn Kiss. Afterwards, Deadpool tells her that she deserves better, and that she only likes him because she doesn't fully know him. Rogue kisses him again -unmoving in her feelings. She tells him that the stuff in his head is a relief after having Red Skull in her's. He notes that as the most romantic thing anyone's said to him. In the next panel we see them continuing their kissing elsewhere.
Word of God states that the two seem very lonely, and admits that while the majority were rooting for Rogue and Gambit, he wanted to try something new and unexpected. Chapter 23's recap classifies Rogue and Deadpool's evening previous chapter as their first date.
However it doesn't last as Rogue goes back to Gambit when Kitty and Colossus are unable to go though with their wedding and Gambit proposes to her. They are Happily Married and Deadpool shows up on their honeymoon, being a bit jealous of Gambit.
In Marvel 100th Anniversary Special, Kirby and Victoria apparently shared a kiss on a previous mission, and seem pretty bashful around each other. Interestingly, Kirby is the grandson of Mr. Fantastic and the Invisible Woman, while Victoria is the granddaughter of Doctor Doom.
When he finds Monet in limbo, he mentions working with Rachel Summers whom he sent back so he could talk with M alone. Monet asks if he's protecting his new friend & says she doesn't like it.
There's the extent of his protectiveness toward her. He goes so far as to shield & protect her before the mutants they were supposed to be helping.
Weapon X has Domino on-board the ship as soon as she hears about it from Yuriko, becoming a Moment Killer in issue 23 by interrupting Creed's convo with M to gush at him.
It leads into a semi-Love Informant ramble where Domino tells Monet that nobody believed Creed when he insisted that she was just a friend.
Runaways and Young Avengers both do this pretty often, but their Civil Warcrossover really went crazy with it. Tommy calls Nico hot, Nico calls Eli cute, and Victor calls Cassie an angel after she saves his life (he didn't think people actually did that). On top of that, the Tommy/Kate/Eli Love Triangle and the Vision's crush on Cassie are more apparent than ever.
In the second volume of Guardians of the Galaxy, Peter Quill and Mantis have several moments, starting from early on. However, since the series was cut short, and the change of writers with the next series, nothing came of it.
In Uncanny X-Men, Magik is one of the three people who still trusts Cyclops as a leader, and there are plenty of moments where he comforts her during the resurgence of her Limbo trauma. She later expresses relief upon finding out that he hasn't gotten back together with Emma. note Although given the age difference, some find this pairing squicky.
With the superpsy Kay K in Double Duck. often seems very affectionate to Donald and sometimes flirt with him. Especially after her Heel–Face Turn with she become one of the heroes working often with Donald, her official "partner". Naturally she claim with Daisy that are Just Friends, but again she is a good liar.
The final page of the final story in Volume 5 of Empowered shows the scantily-clad eponymous character giving the likewise scantily-clad Sister Spooky a big hug. She also appears to be stroking Spooky's hair.
In Kick-Ass, for better or for worse, a lot of the scenes between Kick-Ass and Hit-Girl are framed from an odd angle where it looks like one is kissing the other (the dialogue bubbles dispel the notion, but the imagery is there), in addition to the two being about as close as anyone in the comic can be.
The Nightmare Arc might as well be called "Secret of My Excess, Part 2" for all the Spike X Rarity moments. For one thing, Spike brings the Fire Ruby, plus Spike is one of the only two characters who could cause a reaction on Nightmare Rarity (the other is her sister Sweetie Belle) and it's Spike who delivers the final line that releases Rarity from the Nightmare's grip. The last panel of the arc's final page also speaks volumes.
In Issue 9, Big Macintosh practically has to fend off all of his female admirers— Sweetcream Scoops (who has been stalking him for several issues), Bon Bon, Fleetfoot (who gets an entire splash page and an alternate cover featuring her marriage fantasy about him), and even Princess Luna practically throw themselves at him. Zecora also follows him around, although if she's actually interested in him, she's at least more subtle about it than the other girls.
Not even going over the amount of Ho Yay in Sam And Max, the titular duo is constantly a: being "mistaken" for a couple, or b: having a character trying to get them dating, or c: being told that they are destined to be together.
Sonic the Hedgehog (Archie Comics): In issue 17 Antoine goes to retrieve a lost power ring for Tails in Robotropolis seemingly oblivious to all the danger there. He retrieves it and Bunnie is revealed to have been secretly tailing him and fighting off anything that tried attacking him. The comic ends with Antoine implying that he knew she was doing it and kissing her on the cheek. Nothing comes of it immediately afterwards but it's easy to see it as a precursor to their relationship later on.
Pathfinder: The first issue has some light flirting between Valeros and Merisiel, the latter of whom even states she's not in the mood for him at the moment but might be at another time. That ship is solidly sunk when she gets together with Kyra at the end of issue 9.
In Warlord of Mars, an attraction between Carthoris and Linea is hinted mixed with some intense UST. It ends in tears when she dies.
before, but never so much in Tom King’s run where issue 40# of Batman (Rebirth) has them realise their UST and try and cope with it. The fact that Catwoman (Bruce’s main Love Interest) is genuinely jealous of how close Diana is to Bruce and considers her a rival for his heart, speaks volumes.
