I always keep the four horsemen together (Sonic, Tails, Knuckles, Amy), unless certain situations require me to switch up. Then I come up with other team match-ups
Team Rose +1 (Heroes):
Sonic, Amy, Cream, Big
Team Dark +1 (Heroes):
Sonic, Shadow, Omega, Rouge
Team Dark +1 (SA2):
Sonic, Shadow, Eggman, Rouge
Two Pairs:
Sonic, Shadow, Knuckles, Shade
Rivals Unite (SA2):
Sonic, Shadow, Knuckles, Rouge
All Air +1 (Heroes):
Sonic, Tails, Cream, Rouge
All Power +1 (Heroes):
Sonic, Knuckles, Big, Omega