Isekai BL
Reincarnation, Transmigration
Reincarnated in Another World
Reincarnated in a Game World
Reincarnated in a Book World
Transported to Another World
Reincarnated Lover
Multiple Reincarnation
Reincarnated in the Past
Time Travel
Time Rewind
⁃ younger ukes
⁃ shorter ukes
⁃ sexy ukes
⁃ submissive ukes (w/wo BDSM)
⁃ uke w/ low self-esteem
⁃ tight hole defiled
⁃ big dick
⁃ childhood/school/college friends
⁃ rapist/asshole semes
⁃ student a/o teacher ukes
⁃ childhood/school/college friends
⁃ employee a/o boss ukes
⁃ uke always horny (insatiable sex drive)
⁃ cross-dresser ukes
⁃ puppy/gentle semes
⁃ established relationship
⁃ friends to lovers
⁃ coworkers to lovers
⁃ LGBT parenting
This is just a list of manhwa/manga which has main character/s who gained a second life in the modern world setup.
Main Characters: Reincarnated/Second Life
Settings: Modern Society
The list is in no particular order.
Feel free to suggest anything in the comment section.