https://www.mangago.zone/read-manga/kimi_wa_natsu_no_naka/
It’s very well written
https://www.mangago.zone/read-manga/bright_blue_ni_shizumu/
https://www.mangago.zone/read-manga/kyuuketsuki_to_yukai_na_nakama_tachi/
https://www.mangago.zone/read-manga/saenai_boku_wa_kimi_no_hero/
https://www.mangago.zone/read-manga/koimonogatari/
https://www.mangago.zone/read-manga/lonely_to_organdy/
https://www.mangago.zone/read-manga/kowagaranai_de_soba_ni_ite/
https://www.mangago.zone/read-manga/blue_sky_complex/
Not all of these r slownburns but they're all very well written https://www.mangago.zone/home/mangalist/1479405/
https://www.mangago.zone/home/mangalist/2327271/ these r the mangas that have me crying at 3am lmao
Enjoy!
https://www.mangago.zone/read-manga/jazz_for_two/
https://www.mangago.zone/read-manga/here_u_are/
https://www.mangago.zone/read-manga/never_understand/
https://www.mangago.zone/read-manga/geu_kkeute_issneun_geos/
https://www.mangago.zone/read-manga/19_days/
https://www.mangago.zone/read-manga/perfect_buddy/
https://www.mangago.zone/read-manga/speak_the_truth/
any bls that are slow-burn or have a very well written romance that get you in the feels?