The Jedi, like Luke Skywalker, might ally with the Guardians of the Galaxy. The Guardians often fight for good, and the Jedi could see their potential. The Jedi's wisdom and the Guardians' street - smart ways could complement each other well. For instance, the Jedi could teach the Guardians about the Force, and the Guardians could show the Jedi some new combat techniques from their part of the galaxy. Also, Gamora, with her combat skills, could be a valuable asset to the Jedi in battles against the Sith.
Han Solo and Star - Lord would probably be great allies. They both have that roguish charm and are good at getting out of tough situations. They could team up on some space heist or adventure.
Chewbacca and Groot could be very likely allies. They don't speak much but they are both strong and loyal. They could communicate in their own ways, like through gestures or simple sounds, and fight side by side against common enemies in a fanfic.