These are all the manhwas/mangas/manhuas that I consider a slowburn romance
https://www.mangago.zone/read-manga/a_guide_to_proper_dating/
https://www.mangago.zone/read-manga/our_relationship_is/
https://www.mangago.zone/read-manga/you_at_first_sight/
https://www.mangago.zone/read-manga/kisses_x_kiss_x_kisses/
https://www.mangago.zone/read-manga/the_story_about_you_x_me/
https://www.mangago.zone/read-manga/the_guy_she_was_interested_in_wasn_t_a_guy_at_all/
https://www.mangago.zone/read-manga/bead_master/
https://www.mangago.zone/read-manga/akatsuki_no_yona/
(Idk if u watched the anime, if u didn’t, I recommend it)
https://www.mangago.zone/read-manga/death_is_the_only_ending_for_the_villainess/
https://www.mangago.zone/read-manga/don_t_say_you_love_me/
https://www.mangago.zone/read-manga/heaven_official_s_blessing/
(I recommend watching the donghua and the novel too)
Anyone got a rec for a slow burn romance, preferably manwha, but manga is also fine, with a lot of chapters. (▰˘◡˘▰)