https://www.mangago.me/read-manga/a_country_of_maestri/
^supernatural, mystery, great relationships and connections between characters
https://www.mangago.me/read-manga/homeless/
^school life/coming-of-age, very focused on characters and their relationships with parents/other students
https://www.mangago.me/read-manga/hungry_souls/
^a post-apocalyptic story i read a long time ago, but i remember it being really good

I want to read something with a great plot. Any genre is fine. It should be completed and not ongoing. Thank you in advance