If you haven’t read these,
I’d say Kill The Lights
https://www.mangago.zone/read-manga/kill_the_lights/
And although it isn’t entirely the same, it’d recommend Half of Me
https://www.mangago.zone/read-manga/half_of_me/
https://www.mangago.zone/read-manga/film_emperor_s_reincarnation_script/
And also this one lmao
"Again"
It's not exactly reincarnation but the mc a shit guy, kills himself, goes back in time thanks to his mother sacrificing a lot for him so decides to live a better life for himself
In the past the ML didn't like him but now they have such a grinning, smiling, giggling, kicking feet in air relationship
Is there any bl with the same concept of the mc reincarnating in someone else’s body, and then finding the ml again and them falling in love.