I’ve always disliked the original ending. Have you read any of the sequel books? Some are quite good. I really enjoyed Rhett Butler’s People which covers his life before Scarlett and and Ellen’s life before Gerald O’Hara.
I have read
Scarlett by Alexandra Ripley.
Scarlett travels to Charleston. She tries to impress Rhett's mother.
Scarlett travels to Ireland to visit her father's relatives.