What I think would be interesting is if we had a cool thing like that for each type of media. I'm gonna give examples/suggestions below for each genre.
Manga would have Goku, Sailor Moon, Naruto, Luffy, Yusuke, Eren Jaeger, Natsu, Jotaro, and Ichigo.
Anime would have Shinji, Gurren Lagann, Ryuko, Greymon, Astro Boy, Yugi, and Ash Ketchum.
Comics would have Superman, Spider-Man, Thor, Batman, Wonder Woman, Captain Marvel (female), Iron Man, Hulk, Galactus, Darkseid, and Spawn.
Games would have Mario, Sonic, Link, Pikachu, Master Chief, Kirby, Mega Man (classic), Samus, Solid Snake, Pac Man, Cloud, Lara Croft, and Crono (or Sora instead of Crono. It's a matter of series vs individual game. KH is a better series, CT is a better game).
Books would have Harry Potter, Percy Jackson, John Snow, Captain Underpants, Katniss Everdeen, and maybe even Dracula and Frankenstein (this could work with covers of the books they're from, but only books)
Movies would have Darth Vader, Indiana Jones, James Bond, Terminator, Robocop, Godzilla, Lucy, Shrek, Mr. Incredible, and Elsa.
Cartoons could have Steven Universe, Ben 10, Bill Cipher, Aang and/or Korra, Spongebob, Finn the human, Danny Phantom, Kim Possible, and Star Butterfly.
Live action TV could have Doctor Who, Jason Bourne, the Smoke Monster, Red Ranger, Sam Puckett, AdamConover, CW Flash, Supergirl, and/or Green Arrow (I'd go with Supergirl for a female representative), God from Supernatural, and Jesus from American Gods.
I don't know enough LNs and VNs to do those. I know of SAO, When They Cry, Masada's works, F/SN,
Keep in mind that these are just examples with the characters, and this is just a suggestion.