maybe this one? ghost apartment, but has more focus on humans relations
https://www.mangago.me/read-manga/youkai_apato_no_yuuga_na_nichijou/
and this one. a guy that remembers he is a princess in his past life
https://www.mangago.me/read-manga/bokura_no_kiseki/
You can watch or read Mushishi if you want a Natsume Yuujinchou vibe-ish.
If you just want a long ass manga, One Piece of Meitantei Conan
If you want to fall into a (almost) never ending loop of stuff to read, just pick any series by CLAMP. You'll need to read all their other stuff to understand whatever is happening (very enjoyable, tho)
ive been watching and reading natsume’s book of friends and i LOVE IT SO MUCH. and now im bored im rewatching fruits basket.. but i wonder if there’s any manga/anime that i can watch that has long seasons or volume. worth to read!