I've already read that one
No wonder, It's one of the best.
You can try these, but they wasn't as appealing as Trash of the count Family for me. I'm still looking for something which will be at least half as good and engaging.
https://www.mangago.zone/read-manga/what_happens_when_the_second_male_lead_goes_on_strike/
https://www.mangago.zone/read-manga/noblesse/ - there is also anime for this one
https://www.mangago.zone/read-manga/the_s_classes_that_i_raised/
https://www.mangago.zone/read-manga/living_as_the_enemy_prince_sellascans/
https://www.mangago.zone/read-manga/the_reincarnated_assassin_is_a_genius_swordsman/
Can anybody recommend me manhwa/manhua with no romance? With peak artstyle and plot too