I dont see a lot of choices
Please spoiler tag this.
As far as I know, only Gamora or Rocket (depending on your Drax decision) stay with you as a Guardian at the end of the episode.
Nebula either goes missing in action (as a villain) or dies (as a Guardian).
Drax either dies (when you choose to help him) or decides to leave and goes MIA (if you refuse to help him).
I belive Groot leaves no matter what (but depending on the Drax decision, he is either injured or not).