https://www.mangago.zone/read-manga/looking_up_to_you/ it perfectly match your description
https://www.mangago.zone/read-manga/tall_girls_can_fall_in_love_too/
https://www.mangago.zone/read-manga/miss_180/
Asi yeonwoo's innocence which fugma mentioned already
Yeonwoo’s Innocence is a tall, manly girl with a short feminine guy. Somewhat wholesome but also has some angst so
In addition to those above here are some more, hope you enjoy hon
https://www.mangago.zone/read-manga/takasugisan_no_chibi_yan_hero/
https://www.mangago.zone/read-manga/haru_x_kiyo/
https://www.mangago.zone/read-manga/bokura_no_complex/
https://www.mangago.zone/read-manga/lovely_complex/
https://www.mangago.zone/read-manga/library_wars_love_war/
https://www.mangago.zone/read-manga/ookiku_nattara_kekkon_suru/
https://www.mangago.zone/read-manga/pump_up/
Thank you everyone for your recommendations (≧▽≦)
Any wholesome tall girl x short boy (I would appreciate if both of them are green flags)