These are some of my favorites that have very well written stories. The focus is more so on the nuances of the characters and the first one has a very unique stylistic way with colors.
https://www.mangago.me/read-manga/momentum_park_ji_yeon/
https://www.mangago.me/read-manga/incidentally_dyed_by_spring_s_love/
https://www.mangago.me/read-manga/ways_of_parting/
https://www.mangago.me/read-manga/stigma_marloong/
https://www.mangago.me/read-manga/the_man_who_can_t_taste/
Also
https://www.mangago.me/read-manga/echoes_of_footsteps/
https://www.mangago.me/read-manga/negative_kun_gyaru_boy/
This last one is horror? It contains gore so be warned but it's very artistic
https://www.mangago.me/read-manga/madk/

can someone recommend me anything with good writing, like using stylistic devices, deeper metaphors, choice of words etc. thx!