kiss the coming apocalypse because jesus is it bleak as hell
https://www.mangago.me/read-manga/kiss_the_coming_apocalypse/
tldr: one day the male population suddenly began to die out, and despite attempts to find a solution as for the birth rate to not be fucked unfortunately nothing worked
as a result, any males born from that point onward were a: killed immediately b: sold off into human trafficking rings if not worse depending on their looks and genes c: given to a shelter where their own sperm is forcibly collected, rated, and used to impregnate women across the world who want babies
and for the record, yes if a baby boy is born a lot of the moms absolutely are and do sell their own sons for money if not worse
and also yes, it’s shown at various points that the rare few still living men that aren’t immediately killed or hunted down like dogs ‘do’ try to blend in via cross dressing but are unfortunately usually figured out pretty fast or are ratted out

Just...Just anything interesting please, ive read all the popular ones istg. if prefer if it's murim but anything that has action or fantasy will do!