Best Isekai/Reincarnation

Probably hands down the best one out there.

An interesting premise where she is groomed as the stepmother to four children before the father dies. She just wants to be loved by them but their feelings are misunderstood and she dies thinking she is hated. With reincarnation she wants to make different choices to alter her fate.

Its soooo good, so much political intrigue and mystery.

If you haven't read this yet you should!

A forgotten princess is married off to a horrible man who abuses her. She is barren and finally finds a way to escape that life and live simply. After rebirth, she decides to make a deal with a powerful Duke who doesn't want kids to avoid her previous husband. They enter a contract marriage where she promises to never fall in love with him.

Holy hell the main character actually gets with the male leads, it's a God damn miracle.

She is dragged into a reverse harem game world as the sadistic villain. She tries to make up for the harm that her previous self caused while hiding that she is a different person. Her main rival is the main character of the game, whose menu screens and choices she is able to see.

This is very much a revenge porn type, where the female lead calls out how horribly all the Male leads had been treating her in the past and makes them feel like shit.

She is dragged into a dating video game that she was never able to beat on the hardest difficulty; mainly playing as the villainess who is mistreated and hated. Her life depends on repairing the relationships with the male leads, but most of the time she's just being straight up savage.

This is on the fluffier side, but it's not bad.

Killed in her previous life over a false accusation, her main goal after rebirth is: avoid the crown prince who was going to execute her, ditch her toxic fiance, and try to earn her apathetic father's love.

The female lead is amazing.

She was the founding empress of the empire, only to be stabbed in the back by the one she loved. Reborn many years later, she retains all her old knowledge and skills, and ends up breaking the curse on a Duke. While their marriage was previously one of convenience, she starts to wonder if he might be a reincarnation of her old love.

Read this on Webtoons for free, not here.

After being poisoned by her fiance, stepmother, and stepsister over her inheritance, she awakes just days before her death. She quickly seeks out a powerful Duke for protection, asking for a contract marriage for a few years. He declines at first, but after she discovers his family's secret, he is compelled to accept.

Read this on Webtoons for free, not here.

Once the commander of an elite troop, she is stabbed in the back by her second in command before the end of the war. She reawakes in the body of a noblewoman from the enemy country after victory is achieved only to find her second is in a position of power here. She becomes engaged to this country's commander while vowing to get her revenge on her killer.

Ah yes, brotherly love...

After dying in the normal world, she is reborn as the evil step sister to the male lead in a novel. She vows to treat him well and maintain their inheritance until he is old enough to take over, and then she will disappear and live out her days in peace.

This is the OG isekai novel; the one that started it all. It's just so good, and best of all, it's completed!!

Yuuri is dragged to the ancient Hittite empire by an evil queen using magic to become a sacrifice. She is rescued and taken under wing of the third prince, Kail. As their relationship deepens, it is hard to balance wanting to return to modern day Japan with being useful to the man she is growing to love.