Regression/Isekai/Possess other body (BL)

Regression

Uke regressed to the time when the queen just died, and his little brother still alive. He planned to keep his brother alive so he can safely become a king by asking help from seme (his old friend from previous timeline). Seme is a minor duke from other country, where he has greedy older sister. Green Flag Seme. Healthy Relationship

Isekai & Possess other person body

MC isekai into a book as a canon fodder who destined to die early in the novel, but he changed his destiny and actually get married to ML (ML actually also ogML in the novel).
Just like the title, ML is green forest sweet guy. Even when they have misunderstanding, they resolve it quickly.

Mason died on assignment and come back to live but possess a body of C-Lister Hollywood actor with bad reputation

Possess another body in same world & timeline

Louisen died as a beggar after ran away from his Dutchy when there's an attack. He was regressed to few years ago and determined to save his dukedom and his life

Regression, MC died and return to time a few years before he died

I sekai into another world where MC was forced to be "a blessed maiden" which mean MC has to have sex with the mage who summoned him

MC isekaid to another world as a prince whom get beaten and raped by others but MC is quick witted and smart so he actually acts as a real smart prince. Still pity the real body owner is bullied and just die like that

isekai into another world (not a book or anything, just really another world)

MC died 13 years ago. Revived back to life and possess a body of someone who sacrifice himself for MC so MC can take revenge on behalf of this person. Very recommended. MC is the manliest, selfless, uke ever. Based on novel. Cry a river guys

Reincarnation & Possession. MC already dead and return to the world in another person body

Isekai anthology

Crown Prince (MC) remember his past life where his current life was video game on his previous life and he now prepare himself and the hero (seme) to defeat the devil

Isekai & Reincarnation. MC already died in previous life, reincarnated in another world as a prince since he was born

Military man died on duty and isekaid as a false accused prisoner on murder case

Isekai & Possession. MC died in war and got transmigration into another world in new body