Basically most of my 'isekai' reading list. :)) Also, not everytime the girls (boys if it's a danmei) are transmigrated as a villain, but can also be an extra character that sometimes is not even destined to die.

More novels, that can't be found here: So What If I’m The Villainess?; I Refuse To be A Character In A Novel; A Liliful World: Yuri Reincarnation; The Emperor and the Tree (transmigrated as a damn tree, ain't this nice lolol); As the Minor Gay Love Rival in Het Novels

Manga that goes by the same genres: The Reason Why Realiana …; Who made me a princess; Miss Not-So Sidekick;