JoshuaMabry says:
@badbaron Who will Charm be partnered with?
Given the details, I went with Jyn to provide more contrast with Charm's small person, a big armored sister works well. However, Charm grew up the daughter of merchant traders, not on the street. Then she woke up one day alone, in a strange place, with strange powers and in the time since (she doesn't keep track of time or memories very well), had to live on her own until Jyn took her under her wing.
Maybe Charm stepped in to help (or even save) Jyn when she was jumped, maybe Jyn stepped in to help Charm when she was cornered by a gang, one way or the other (the story changes depending on who is telling it and where), Jyn's been acting as Charm's unofficial guardian.
Along with Twilight Sparkle and Thule of course.