Looking for Stories About Transmigrating Into Fairy Tales, Like Becoming Cinderella's Stepmother 有没有那种穿到童话书里的 比如灰姑娘的后妈那种

The protagonist transmigrates into the stepmother of Cinderella or Snow White, and their mission is to help the prince and princess live happily ever after, that sort of thing. There's also a transmigrator into a book who becomes the villainous male lead and opposes the heroine, but they eventually get together. Then they return to their own world and start dating there, too.