Some of my recs are popular so you may have already read them but I'll put them here anyways
https://www.mangago.me/read-manga/perfect_omega/ (omegaverse, almost finished)
https://www.mangago.me/read-manga/follow_the_sheep_in_the_abyss/ (Short manhwa but the novel is finished on floraegarden and seme is VERY doting)
https://www.mangago.me/read-manga/you_own_my_all/ (Chinese danmei, historical regret and regression, finished)
https://www.mangago.me/read-manga/first_night_with_my_beloved/ (size difference, playboy falls in love, finished)
https://www.mangago.me/read-manga/my_assistant_bf/ (Seme can't ein against uke, finished)
https://www.mangago.me/read-manga/hentai_shinshi_to_kisekae_dansho/ (Worships uke and his panties LOL, finished)
https://www.mangago.me/read-manga/honey_bear/ (Main story doting seme, seme fell first and pursues uke, finished)
https://www.mangago.me/read-manga/deliverance_of_the_counterattack/ (They start off bumpy but trust the process. Main couple story: seme does whatever uke asks, chinese danmei, finished)
https://www.mangago.me/read-manga/bongchon_bride/ (Koren historical, finished)
I probably have more but these are what came up first

Looking for bls where the seme spoils/does on the uke