Powerful main leads in isekai

bestie is in a pickle alright! she isekaied in a story as the FL, but died in a year, then came back to life a year earlier just to die again. stuck in a loop, she gives up on love and goes insane, thinking she'll spend her 100th life being a serial killer instead. DARK... fun :)

strong dark female lead! reborn in the psycho family of the book's "bad guys", she tries to survive her crazy dangerous family members and to help the good characters so she doesn't get executed in the end. all for the good ending!

she gets isekaied as the villainess, but she wants nothing with the cheating greasy main lead, so she dumps his ass and wants to make money!

she reincarnates as the villainess, but she wants to protect her victim, so she raises him instead. but this kid also reincarnated, and he is older and stronger than he appears. he wants revenge on the villainess but she doesn't act the same anymore. are they family or a couple, idk

she reincarnates as a villainess, but she wants to protect the male lead from his crusty mother. as they grow up and she keeps being successful, will their relationship progress as her fiance hopes?

bestie reincarnates as the kid version of the villainess, but she has a cheat code to level up super fast and get many skills! her favourite character is a smart "dealer" for the playeres, so she wants to mary him as soon as she can! smart kids are cute, and status cheats are great!

bestie gets stuck in the game she worked for as a mob character, and now her only chance to exit the session is to finish the entire gameplay before her missing body dies in the real world.