There are many stories about heroes becoming villains but I want a villain becoming a hero!

You know there are great classics where hero does things right but slowly either turns evil or feels forced to become evil (Darth Vader, Eren Jaeger, etc) – srry haven't read much books with this trope but you get the idea

I'd love to ready a story where it's the opposite, where the villain is bad but slowly realizes they can be good, maybe theyre forced to be good (and ends up liking it), whatever it is but basically villain goes to good side and stays there. I'm thinking Zuko or megamind

Any genre is fine 🙂