This may not be helpful at all but I’m bored as well so I’ll give some random advice 😅
Dont be afraid to give them negative traits!
I see it allllll the time where a character is basically perfect, and the bad traits they have are all erased with character development. It makes them seem less human. It’s okay for your characters to have things that people might not like about them, even at the end of the story!
That’s one of the things I gotta learn. Every time I try to write a flawed character the downside somehow end up bent back up the right way. No clue how :p