https://www.mangago.zone/read-manga/my_half_esper/
https://www.mangago.zone/read-manga/caressing_the_nipples_of_my_hibernating_bear/
maybe checkout the pseudo incest tag
（＾_＾）
Op you are brave.
I only know few -
https://www.mangago.zone/read-manga/regas/
https://www.mangago.zone/read-manga/redeem_only_one_forever/ - Peak
https://www.mangago.zone/read-manga/kiss_the_abyss/
https://www.mangago.zone/read-manga/yuuutsu_na_asa/ -Peak
https://www.mangago.zone/read-manga/red_haired_james/ - peakk
https://www.mangago.zone/read-manga/dawn_of_the_dragon/
https://www.mangago.zone/home/mangalist/836663/ found this list . But it might have incest ones too. So just check the tag before reading.
lwk exposing myself but BL where the uke has taken care/known seme his whole life and when seme gets older him n uke start dating
Doesn’t even have to be completely accurate to that storyline just anything with uke being older and seme younger