Responses
I haven't read approximal guide but i think it's about traveling back to the past? in that case there's things similar to that, except both of these are about celebrities (idols/actors)
https://www.mangago.zone/read-manga/meteor_orbit/
https://www.mangago.zone/read-manga/again_1/
any bls (preferably shounen ais) that r like regas / approximal guide that are like reincarnated ml x obsessive ml