MC either transmigrates or reincarnates into ancient China or a Wuxia type world, to set a life right or take revenge

Be sure to try my other lists

Switch Switched children the most comprehensive list pf its type

https://www.novelupdates.info/viewlist/24775/?st=1

My other lists can be found here https://www.novelupdates.info/user/231781/kawaii12345/
and include
Switch Real Children VS. Fake Children (children coming to terms with being switched)
Fake Children vs Real Children Quick Transmigration
Real Child vs Fake Child Standalone list
Sibling Warfare (when the kids are about to kill each other)
Poisonous Families
Transmigrated into a novel
ACT: Ancient China Transmigration