Slice of life manga/manhwa without romance and thriller

https://www.mangago.me/read-manga/nan_hao_shang_feng/
https://www.mangago.me/read-manga/an_uncomfortable_truth/
https://www.mangago.me/read-manga/peerless_dad/
https://www.mangago.me/read-manga/girl_that_can_see_it_pixiv/

Try this https://www.mangago.me/read-manga/shounen_note/ (=・ω・=)

https://www.mangago.me/read-manga/this_uncle_likes_cute_things/

https://www.mangago.me/read-manga/mr_villain_s_day_off/

and there's a few on this list:
https://www.mangago.me/home/mangalist/904520/

The Children’s Teacher Mr.Kwon
Asobi Asobase
Papa Wolf and the Puppy
Homeless/No Home
Tanaka Is Always Listless
Saturn Apartments
Chichi Kogusa
Chichi’s Sweet Home
Centaur’s Worries
Barakamon
Space Brothers
Cool Doji Danshi
Aria

https://www.mangago.me/home/mangalist/1030892/