In fan art (and in fic to a lesser extent) MikoMiyazaki is frequently drawn, written, or requested, despite her status as The Scrappy with a large portion of the fandom and cast - and again, she's paired with everyone (including The Snarl).
In Kink Meme news, while everyone's had a lot of action, probably the ultimate fandom mattress is now the Critic. A fair assumption, seeing as how apart from his usual pairings, as of writing he's had a gangbang on his desk, been shipped with an animated gargoyle, been the recipent of tentacle-lovin' and got kissed by the Lady Gaga from the Bad Romance video. Yes, really.
His actor, Doug Walker, is doing pretty well for himself too. Mostly because he's flirted with nearly everyone on the site for funsies.
It doesn't help matters that Spoony/Chick, Spoony/Googles, Spoony/Benzaie, Spoony/Critic, Spoony/Joe and Spoony/Sage are all canon.
Add to that Spoony/The Other Guy, Spoony/Paw, Spoony/Snob, Spoony/Ed Glaser, Spoony/The Last Angry Geek, Spoony/Matt Briner, and both Spoony/Pushing Up Roses and Spoony/Bargo were hinted at. And if crossovers count, Doctor Insano got it on with Doctor Holocaust and Captain Awesome.
El Goonish Shive has Tedd. He has a canon romance with Grace, and more than a little subtext with Elliot (including them dating in at least two alternate universes) which also frees up Ellen. Tedd's had plenty of moments with Susan and Sarah (with a decent amount of shippers for each of them with him), and there has been more than one Ho Yay bit with Tony. Some stretching on his former anxieties around Justin and a Bi the Way interpretation of his moments with Catalina is all it really takes to put Tedd with almost anyone his age in the cast. Except Nanase. Usually.
Rooster Teeth's other major production, RWBY is even WORSE in this regard. Everyone from team RWBY plus Jaune has probably already been paired with every conceivable character at this point, including each other, at the same time.
Ruby is perhaps the worst offender of this, usually being the first to be paired with someone.
Rosa Fiametta of Survival of the Fittest falls into the 'fandom bicycle' category, as in recent times, pairings bandied about have included: Bounce, Ilario and Frankie Fiametta (Twincest, yay!), Alexia Morgan, Princess Cerberus (a joke character), Adam Tenser, Blood Boy and Bobby Jacks. This isn't even counting the several canonical relationships she's had.
Naturally, the most requested character on the (relatively new) SOTF Kink Meme is Rosa. It's reached the point where there's now a rule about requesting Rosa, because she had a truckload of requests compared to other characters.
Hannelore "Hanners" Elliot Chatham from Questionable Content gets paired with...oh, you know the drill (a lot of her cast members new and old gets this treatment, too. Hanners isn't the main character).
In the webcomic The Dreamer, we have Bea. Officially with Alan in the 18th - century and with Ben in the 21st - century, may have had a past with Alex, could be paired up with her cousin John, and also with Freddy, just for the hell of it.
Many of the characters have many ships to their names. Resident Shipper on DeckNepeta maintains a shipping wall, keeping track of the relationships between every single possible pairing between her friends.
Because the Trolls are naturally bisexual and have four different kinds of romance, by nature they tend to get shipped around more than most of the other characters. Karkat is particularly prevalent; In canon, ship teases include Terezi, Nepeta, Jade, John, Dave, and Meenah. Sollux and Gamzee, being his closest friends, are also popular choices.
The fandom doesn't exactly keep Dave to one person either. Aformentioned Dave/John, as well as Dave/Jade and Dave/Rose are way more popular than their "compliments" Rose/Jade, John/Rose, and John/Jade respectively.note Going by Archive of our Own stats. He's also been paired up with all of the original twelve trolls and new kids at least once each (some considerably more than others, like Karkat and Terezi), and between that and some of the more crack choices, it got to the point where the author possibly lampshaded it by having the comic's Big Bad write a terrible comic-within-a-comic where its incarnation of Dave is a supposed ladies' man with a decently sized harem.
Dodger. Her vlogs never mention her love life, probably because if they did her entire fanbase would start a war among itself. That doesn't stop people from shipping her with every other TGS member in the LA area...and one in Chicago.
Vex has been paired with Zahra, Percy, Pike, Grog, and Jarrett
Vax has been paired with Keyleth, Gilmore, Percy, Grog, and has had some Foe Yay with Lord and Lady Briarwood.
Kim Richards from the Yogscast. The majority of Yogs are male, and since Hannah was (until 2015) in the Official Couple with Lewis and Zoey is a lesbian, Kim has been shipped with basically everyone. Fans were also overjoyed when she hinted she didn't mind being shipped with Hannah.