i'm gonna be honest, i think it's better if the team chaotix has to join rivals' workshop starting with espio, the brain of the chaotix, a ninja expert his moveset might be similar to greninja or shiek but much similar to Ryu Hayabusa it can be fit better for his moveset, now with Vector & Charmy, it can be a duo like duck hunt & rosalina and luma, but they can have a similar moveset, moves can be from sonic heroes for example, and lastly, mighty the armadillo the moveset can be from sonic mania and knuckles chaotix, he might be a light/heavyweight fighter but i'll let ya guys how to make it, i hope you understand i've been thinking of it since i realized that there's no chaotix on this workshop comunity even mighty isn't here neither, i hope you accept it

Vector The Crocodile & Charmy The Bee (Duo) (Knuckles' Chaotix/Sonic Heroes)
Espio The Chameleon (Knuckles' Chaotix/Sonic Heores)
Mighty The Armadillo (Knuckles' Chaotix/Sonic Mania Plus)