Responses
Survive romance
School bus graveyard (can be read on webtoon for free)
https://www.mangago.zone/read-manga/zombie_100_zombie_ni_naru_made_ni_shitai_100_no_koto/ (more comedic, but really good fun story)
https://www.mangago.zone/read-manga/imawa_no_kuni_no_alice/
https://www.mangago.zone/read-manga/afterschool_war_activities/
+ some lists I follow~
https://www.mangago.zone/home/mangalist/544893/
https://www.mangago.zone/home/mangalist/1261693/
Also the tags:
https://www.mangago.zone/tag/Zombie+apocalypse/
https://www.mangago.zone/tag/apocalypse/
Hope it helps
Anything that is about survival please :))