Basically what it says on the tin. Finn doesn't join the Resistance because he doesn't want to be in a military environment. He can't deal with it, no matter how different the Resistance is.
However he does want to help, just not as a soldier. So idk how, but Finn becomes a sort of free agent/bounty hunter/assassin/all around seemingly unsavory but not kinda guy, whose loyalty is to the people of the Resistance that he cares for, who he will do anything to protect.
Maybe he stays and trains a bit after he wakes up and they find out he's like a really good spy and good at a bunch of things (super competent Finn FTW). Then he goes off to meet with some of Leia's contacts (LANDO) to help them in different ways and picks up all kinds of neat tricks, makes allies/contacts of his own and basically starts getting a reputation during the war.
And he gets the requisite scars and things, so when he comes back for check-ins/visits (because Finn would totally visit his babes, mom and friends) the changes are always kind of jarring because they never see him otherwise. (OP kind of wants a Finn who is playing with his appearance a la body mods and gender expression?). And that's why even though he has a bounty bigger than the Resistance's monthly budget, no one can get him, because he's ever changing his look.
Gen or Finn/Any - Finn doesn't join the Resistance formally
However he does want to help, just not as a soldier. So idk how, but Finn becomes a sort of free agent/bounty hunter/assassin/all around seemingly unsavory but not kinda guy, whose loyalty is to the people of the Resistance that he cares for, who he will do anything to protect.
Maybe he stays and trains a bit after he wakes up and they find out he's like a really good spy and good at a bunch of things (super competent Finn FTW). Then he goes off to meet with some of Leia's contacts (LANDO) to help them in different ways and picks up all kinds of neat tricks, makes allies/contacts of his own and basically starts getting a reputation during the war.
And he gets the requisite scars and things, so when he comes back for check-ins/visits (because Finn would totally visit his babes, mom and friends) the changes are always kind of jarring because they never see him otherwise. (OP kind of wants a Finn who is playing with his appearance a la body mods and gender expression?). And that's why even though he has a bounty bigger than the Resistance's monthly budget, no one can get him, because he's ever changing his look.