The Fox and the Hound (Tod and Copper) - Support - Idk they’d just be best as support
The Potato Heads - Control cause they could use whatever is in their storage part of them (if you’ve seen Toy Story 2, you’ll know what I’m talking about) to throw at the enemies, they could toss all their body parts and then roll their bodies at them, and they can even call in the 3 aliens with their claw to do things.
Phineas and Ferb - I’d have them be Support or Damage just cause the make gadgets and machines that could go either way
Doofenshmirtz - he’d be Damage cause he’s evil and makes -inators