Off, this is a hard one. "Necromancer Survival" sound like what you're looking for, but if you're willing to be high on copium then "Omniscient Reader's Viewpoint", and "Regressor's Instruction Manual' just have THAT vibe between the male leads.
this one is just getting started but the mc's ACTUALLY op and it's so so good
https://www.mangago.zone/read-manga/death_delayed_for_a_short_time_because_of_the_will/
Literally went ON A HUNT TO SEARCH YOUR COMMENT bc I had one recc WHICH U NEED TO KNOWWW
Not bl VERY FRUITY personal recc as well they created the FRUITY chart LIKE BROKE IT LITERALLY
https://www.mangago.zone/read-manga/the_s_classes_that_i_raised/
action but gay?? ive been really into those dungeon breaks/OP MC kind of action and is there one like that but the chatacters are a fruit basket??