These were interesting to me, they got me out of the rut I was in:
https://www.mangago.zone/read-manga/tondemo_skill_de_isekai_hourou_meshi/
https://www.mangago.zone/read-manga/get_back/
https://www.mangago.zone/read-manga/homeless/
https://www.mangago.zone/read-manga/secret_lady/
https://www.mangago.zone/read-manga/one_day_suddenly_seoul_is/
https://www.mangago.zone/read-manga/isekai_omotenashi_gohan/
https://www.mangago.zone/read-manga/a_returner_s_magic_should_be_special/
https://www.mangago.zone/read-manga/lost_lad_london/
https://www.mangago.zone/read-manga/a_story_about_smoking_at_the_back_of_the_supermarket/
https://www.mangago.zone/read-manga/efforts_never_betray/
I don't think any of them have world building, but I hope these helped you
I like reading but man, nothing gives me that ecstacy I'm looking for. Anyone have anything with an amazing plot
Extra points if there's world building