Webtoons

Harem. FL transmigrates into one of her enemy's bodies after being betrayed by the duke she supported.

Abused illegitimate daughter gets married off instead of the official daughter (ML is framed as traitor so they don't want him). FL goes to his house and takes care of it and him after he gets backstabbed.

FL kidnaps the golden and noble ML but he seems to be very willing and freely flirts w/ her.

Takes her sister's place to be kidnapped and held as a hostage for another country. Gets close to the ML as he has the highest divine power and he can relieve her of the pain his country acts on her as she lives there. ML gradually falls for her (restricts himself as he doesn't want to involve her w/ his burdens and the witch who has her sights on him for his divine power).

Head-strong FL, kinda selfish as she's focuses a lot on trying to find her sister. FL died from a demon and was reborn to be a protector of the child of God. She is tasked w/ to observe a candidate if he is the child or a fake who is the lord of the demons.

FL trying to kick out everyone, who treats her bad, from her life.

FL is a witch who's employed to be the royal library manager to sort out some troubles for an acquaintance of hers from school. ML is an upright but hot-headed knight tasked to help her.

Very toxic, neglect relationship. FL has loved ML from start but ML only gradually falls and does some a-hole things. FL eventually has enough after he insults her, misunderstanding, loop, drama, makes-up but not really. FL can switch bodies w/ ML when she wants but also when she kills herself, they switch back when they touch.

FL gets transmigrated into her novel as the villainess tho. She attracts the attention of the devil and helps her become a true villainess and get a backbone to get whatever she wishes (he's actually just there for his own entertainment of her end)