There's a lot. Here's some of my favourite
https://www.mangago.zone/read-manga/the_story_of_an_engaged_couple_that_doesn_t_get_along/ tsundere couple
https://www.mangago.zone/read-manga/koori_zokusei_danshi_to_cool_na_douryo_joshi/ office romance
https://www.mangago.zone/read-manga/tsun_ama_na_kareshi/ tsundere boyfriend. They got married in later chaps!
https://www.mangago.zone/read-manga/it_s_difficult_to_love_an_otaku/ otaku couple
https://www.mangago.zone/read-manga/secret_love/ mutual pining (?)
https://www.mangago.zone/read-manga/the_stars_and_i/ school romance
https://www.mangago.zone/read-manga/zense_coupling/ couples from past life
https://www.mangago.zone/read-manga/hokago_wa_kissaten_de/ a barista and a high schooler
https://www.mangago.zone/read-manga/uchi_no_danna_ga_kawaisugiru_ken_ni_tsuite/ married couple
https://www.mangago.zone/read-manga/kijima_san_to_yamada_san/ office romance
https://www.mangago.zone/read-manga/a_rare_marriage_how_to_grill_our_love/ a couple that loves cooking
https://www.mangago.zone/read-manga/kareshi_no_koto_ga_suki_sugite_kyou_mo_zenryoku_de_ikiru/ girlfriend who loves her boyfriend too much
https://www.mangago.zone/read-manga/genderless_danshi_ni_ai_sarete_imasu/ androgynous boyfriend
https://www.mangago.zone/read-manga/kono_kaisha_ni_suki_na_hito_ga_imasu/ secret office romance
https://www.mangago.zone/read-manga/onee_na_kareshi_to_boyish_kanojo/ tomboy girlfriend
https://www.mangago.zone/read-manga/kuuki_ga_yomeru_shinnyushain_to_buaiso_na_senpai_no_hanashi_serialization/ office romance
https://www.mangago.zone/read-manga/paperbag_kun_is_in_love/ shy boy
Now that I look at it again, this list is too long. Is that okay? (￣∇￣")
100000% okay, im running out of things to read, so getting those long recommendation list is a blessing. thank you.
i don't mind even if you have more recommendations tbh
if anyone know more BxG couple slice of life romance please recommend me, thank you