Read "The apocalypse is here" it's good but ongoing
These are all GLs:
https://www.mangago.zone/read-manga/i_think_you_are_athrea_scans/
https://www.mangago.zone/read-manga/chimidoro_ice_cream/
https://www.mangago.zone/read-manga/black_backed_albatross/
https://www.mangago.zone/read-manga/zhi_wei_jie_kai_ni_de_jia_suo/
https://www.mangago.zone/read-manga/stitch_you_together/
https://www.mangago.zone/read-manga/the_subjugation_school_life_of_the_corpse_girl_and_the_love_heavy_knight/
https://www.mangago.zone/read-manga/your_head_s_fallen_off_again/
https://www.mangago.zone/read-manga/my_first_friend_was_a_zombie/ (bullying, violence)
https://www.mangago.zone/read-manga/yuri_of_the_dead/ (one-shot)
https://www.mangago.zone/read-manga/a_zombie_and_her_master/ (one-shot)
Maybe try dead man's switch. I don't remember well but there was hardly any smut. So I don't think there was any . Correct me if I'm wrong. It's a bl btw. ( Although I doubt that it doesn't have since it's bl.) I'd also love it if you share any you find interesting.
Yall please recommend me anything with zombies (w/o though…) idc if its a gl, bl, straight or no romance at all