>>719858493
The only one that might work as a character different enough from Peter would be Spider-Man 2099, since he has a somewhat different powerset from Peter and a different fighting style. Although it might be a bit similar to Black Panther with the claws and climbing parts.

Otherwise they're all just too redundant in terms of Spider-powers, from Silk to Spider-Gwen. And yes that includes Miles, he isn't different from Spider-Man, he's just Spider-Man but with a dozen extra powers put on top, Miguel at least has actual different base powers and a sci-fi aesthetic. You could make him a Vanguard if you want to do the same as the Spider-Verse movie and make him a lot bigger than Peter, though obviously still far smaller than Venom.

Otherwise for Spider-Man characters it's really all villains you're looking at for additions. Not that the game doesn't need more villains, but it would be a little unlikely to get like six or seven of them from one hero's rogues gallery, and you're actually kind of spoiled for choice, as so many of Spidey's villains would fit right into Rivals. Goblin obviously, but also Doc Ock, Carnage, Mysterio, Sandman, Lizard, Kingpin and Electro would all be super easy to make kits for and each would be pretty unique in the game.