Can you recommend some popular 'I was reincarnated' light novels?

One popular 'I was reincarnated' BL light novel is 'The Saint's Magic Power is Omnipotent' (it has some BL undertones). In this novel, the main character is reincarnated into a different world and has to navigate through various situations while developing relationships that have a bit of a BL feel. Another one could be 'That Time I Got Reincarnated as a Slime'. Although not strictly a pure BL, it has some male - male relationships that fans of the genre might enjoy.

One popular 'Reincarnated as a Girl' light novel is 'So I'm a Spider, So What?'. In this story, the protagonist is reincarnated as a spider in a dungeon. It's full of adventure as she tries to survive and figure out her new existence. The novel has interesting world - building and character development.

Sure. 'That Time I Got Reincarnated as a Slime' is a very popular one. It follows the story of a man who is reincarnated as a slime in another world and gradually builds his own power and kingdom. Another great one is 'Re:Zero - Starting Life in Another World'. The protagonist has the ability to return by death, which makes the plot full of twists and turns.

One popular 'Assassin Reincarnated' light novel is 'The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat'. It has an interesting plot where the assassin uses his skills in a new world.

Some popular ones include 'That Time I Got Reincarnated as a Slime'. It has an interesting premise where the protagonist is reincarnated in a fantasy world as a slime and gradually builds his own power and community. Another is 'Re:Zero − Starting Life in Another World', which is known for its complex plot and character development as the main character keeps dying and restarting his life in the new world.

One popular 'Reincarnated Princess' light novel is 'My Next Life as a Villainess: All Routes Lead to Doom!'. In this story, the protagonist is reincarnated as a villainess from an otome game. It has a great mix of comedy, romance, and a unique take on the isekai genre. Another is 'The Saint's Magic Power is Omnipotent'. The reincarnated princess here discovers she has powerful magic and has to navigate a new world where she is initially misjudged.

There is 'Kumo Desu ga, Nani ka?'. The spider - reincarnated protagonist evolves into a very powerful being, which has some elements related to the idea of becoming like a god. It has an interesting take on reincarnation and the growth of the character in a fantasy world.

There's 'In Another World with My Smartphone'. The protagonist is reincarnated with his smartphone in a fantasy world. While not strictly a monster reincarnation, he befriends various monsters and has adventures with them. It's unique because of the modern - day item (the smartphone) that he brings into the fantasy world and how it changes his and the monsters' lives.

Sure. 'Martial World' is a great one. The protagonist is reincarnated into a world of martial arts and has to climb the ladder of power. Another good one is 'A Record of Mortal's Cultivation to Immortality'. It follows the journey of an ordinary mortal who reincarnates and embarks on a path of cultivation filled with challenges and opportunities.

Another one is 'The Saga of Tanya the Evil'. Here, a male in his past life is reincarnated as a girl named Tanya in a war - torn world. The story focuses on her strategic mind and her attempts to survive and thrive in this new world.