Mmm that's pretty specific so im not sure but here's some that kinda fit
https://www.mangago.me/read-manga/sutei_uizu_guddoboi/
https://www.mangago.me/read-
https://www.mangago.me/read-manga/how_to_train_a_good_for_nothing_rich_boy/
https://www.mangago.me/read-manga/love_me_or_i_ll_kick_your_ass/
https://www.mangago.me/read-manga/oujisama_dochirasama/
https://www.mangago.me/read-manga/hinekure_chaser/
https://www.mangago.me/read-manga/my_suha/ (side stories only)
https://www.mangago.me/read-manga/ikenie_monzenbarai/
This ones either have a bratty/spoiled seme or a annoyed seme
manga/the_lazy_son_and_his_naughty_secretary/
https://www.mangago.me/read-manga/chiya_s_just_an_unstable_guy/
https://www.mangago.me/read-manga/ichinose_kun_wa_itsumo_iinari/
https://www.mangago.me/read-manga/baka_ni_koi_toka_shoujiki_muri_ja_ne/
does anyone know any mangas with bratty spoiled uke who's never been in a relationship (flustered easy ykwim) and calm chill seme who's very annoyed by uke (makes uke wanna annoy him even more). omg i just got clarity wtf did i just write my ancestors rolling in their graves rn (still recommend pls)