Thank u for the good reply.

Hulk is a great choice, probably better than Thor.

Overwatch may get in if they're doing a switch port, idk if they are though.

I don't think Undertale has a chance at all but you're definitely right that if it was in it wouldn't be sans.

Okami or Phenox Wright would own but I don't think they're popular enough or suited for a fighting game enough.

DRAGONBORN does have a big chance and I almost had them on my list until i decided on doomguy

Knuckles or Tales amaluld rule but idk if that would be a DLC level kind of thing