"Avengers:Earth's Mightiest Heroes" is older and a bit better than "Avengers:Assemble" in my opinion.
Scarlet Witch and Hope Summers
Hulk, if he gets enough of anger
I don't think kid loki would be on the team but it depends on how Loki will end. But if he is in he would ve the leader just like he was in the Loki episode 5
Quicksilver and scarlet witch