How do I make group entities that follow a leader?

I want to make entities of different types that persecute a common leader and that these do not attack each other (if arrows are shot between them by mistake). like the pillagers although without being aggressive the moment they see me.

the leader wanders and the minions follow him. if someone attacks them, they respond.

another detail is that the entities are different

any ideas? Or is there already that option but I don't see it?

I tried to make the minions the pets of the leader, like the wolves, but I can't do it
(sorry if it's misspelled, I don't know English and I use google translate)