I don’t actually like angst so even this was too much for me:
https://www.mangago.zone/read-manga/the_tale_of_goldiluck_the_black_kitten/
https://www.mangago.zone/read-manga/10_years_where_i_loved_you_the_most/
https://www.mangago.zone/read-manga/december_rain/
These are the two horsemen of doomed yaoi. I would be pretty shocked if u haven't ready any of these tbh
A lil weird of a rec (the mc is $drawn metaphorically as a bird) but I guarantee it will wreck you.
https://www.mangago.zone/read-manga/oyasumi_punpun/
╮( ̄▽ ̄)╭
Gimme your worst angsts, i need reads that literally made you sit down and pause for a second to process about life for a fat minute