The Villainess Reverses the Hourglass (I think it got taken down but webtoon should still be found somewhere!) Rebirth on the Doors to the Civil Affairs Bureau The Villain Daughter Enjoys Her Seventh Life as a Free-Spirited Bride (Hostage) in a Former Enemy Country (this one's good) The Villainess Lives Twice I’ll Be The Warrior’s Mother there's probably a whole bunch more, but that's all I can get off the top of my head xD lots of Korean novels have female mc's that transmigrate back in time!
The Rebirth of the Malicious Empress of Military Lineage - Ancient China setting. Former empress is reborn and vows to protect her family and get revenge this time around. (Completed) My Husband With Scholar Syndrome - Modern day. MC who died from terminal illness is reborn and agreed to marry the autistic FL who proposed to her. (Completed)