That's a lovely question and i'm afraid i don't kow a lot about fairy tales... But I would say:

• Lumity is the Swan Lake (the one with the good ending where Luz slays the wizard and frees amity and the swans from their curse).
• Vinira is maybe Rapunzel but i like the original tale better than the story in Tangled (this because rapunzel parents are awful and greedy lol).
• And Raeda is maybe the Nutcracker, because my god that tale is so funny and chaotic (Raine would be the nutcracker ofc).

(nobody asked but huntlow for me is The Beauty and The Beast, yes the disney version, yes Boscha is so Gaston).