
Apocalyptic horror: https://www.mangago.zone/read-manga/one_day_suddenly_seoul_is/

Literally anything by this author:
https://www.mangago.zone/read-manga/sweet_home/

https://www.mangago.zone/read-manga/ghost_teller/
https://www.mangago.zone/read-manga/one_day_suddenly_seoul_is/ I second
https://www.mangago.zone/read-manga/lovesickness_junji_ito_story_collection/
https://www.mangago.zone/read-manga/venus_in_the_blind_spot/
https://www.mangago.zone/read-manga/drcl_midnight_children/
https://www.mangago.zone/read-manga/apocalypse_no_toride/
https://www.mangago.zone/read-manga/shokuryou_jinrui/
https://www.mangago.zone/read-manga/dai_dark/
https://www.mangago.zone/read-manga/parasyte_reversi/
https://www.mangago.zone/read-manga/hundred_ghost_stories_of_my_own_death/
https://www.mangago.zone/read-manga/ajin/
Anyone got any genuinely horror recommendations? I want to feel the tension the terror