Cat that was human

Does anyone know of any book(s) that have a FMC who was a human/fairy/god/witch(etc.) but was turned into a cat? I started reading a book with that in the beginning and now I want to find more but google is confused lol. I know it’s very specific, but I love the idea of someone being a cat.

ETA: cool with various types of human/shaped beings, not just humans! Also cool with the FMC turning themself into a cat, as long as they spend time as a cat in the book!