Okay, so. I feel like she has to be friends with Lucy. Not only because of their crazy queen alter egos, but also because I think they would get along sooo well. They're different in personality, but have a lot of the same interests so I think that should be a thing.
Sora is a lot younger, but she's like yaaaay Japanese, high five. She's pretty artsy and would go to Paint Nite, so they should probably know each other despite her being several years younger so they have an excuse to talk in Japanese with each other.
And then I do have my two GoT characters. Rhys is pretty into the arts scene in town as well, donating to the community theater and Ren Faire and all that to help keep them going, so they've probably crossed paths at art shows or other performances? He's the friendliest and her arrival would have been after the scandal of his first marriage/second marriage, so he would have liked introducing himself to someone where he could have a semi-clean slate of an acquaintance with. As for Theo, I don't know if they'd have an easy excuse to have met in the past, but he'd be friendly if they crossed paths.
There's probably more, but those are the ones that jump to mind!