Who's the Superman of Earth 97 if the Nic Cage one is a different universe?That exists, yes. I don't list every single universe that ever appears though, only the ones that have movies/shows predominantly.
Well, Powerless was confirmed to be in the Multiverse on Earth-P, and some would say Krypton and Gotham are there as well, because of Behind the Scenes connections, but idk about them.Earth-1 - DC Extended Universe
Earth-2 - Stargirl
Earth-9 - Titans
Earth-12 - Green Lantern (2011)
Earth-19 - Swamp Thing
Earth-21 - Doom Patrol
Earth-66 - Batman (1966), The Green Hornet (1966)
Earth-76 - Wonder Woman (1975)
Earth-89 - Donnerverse?/Burtonverse
Earth-90 - The Flash (1990)
Earth-96 - Superman Returns
Earth-97 - Schumacherverse
Earth-167 - Smallville
Earth-203 - Birds of Prey
Earth-666 - Lucifer
Earth-F - Superman (1941)
Earth-Prime - Arrowverse
Earth-?? - Adventures of Superman
Earth-?? - Donnerverse?
Earth-?? - Harley Quinn
Earth-?? - Superman & Lois
Earth-?? - Naomi
Earth-?? - The Sandman/Dead Boy Detectives
Earth-1 - DC Extended Universe
Earth-2 - Stargirl
Earth-9 - Titans
Earth-12 - Green Lantern (2011)
Earth-19 - Swamp Thing
Earth-21 - Doom Patrol
Earth-66 -
Earth-76 - Wonder Woman (1975)
Batman: The Movie Batman: Return of the Caped Crusaders Batman vs. Two-Face Legends of the Superheroes The Addams Family Batman The Beverly Hillbillies Green Acres The Green Hornet Hogan's Heroes The Lone Ranger Mister Ed The New Addams Family Petticoat Junction
Earth-89 - Donnerverse?/Burtonverse
Earth-90 - The Flash (1990)
Earth-96 - Superman Returns
Earth-97 - Schumacherverse
Earth-167 - Smallville
Earth-203 - Birds of Prey
Earth-666 - Lucifer
Earth-F - Superman (1941)
Earth-Prime - Arrowverse
Earth-?? - Adventures of Superman
Earth-?? - Donnerverse?
Earth-?? - Harley Quinn
Earth-?? - Superman & Lois
Earth-?? - Naomi
Earth-?? - The Sandman/Dead Boy Detectives