'Lady Crystal is a man' -- has both
'Tooda Oto Tanpenshuu: Niku wo Hagu'-- if you wanted trans man story, it's a good story
https://www.mangago.me/read-manga/1_2_prince/
https://www.mangago.me/read-manga/ouran_high_school_host_club/
https://www.mangago.me/read-manga/the_villainess_cecilia_silvie_doesn_t_want_to_die_so_she_decided_to_cross_dress/
https://www.mangago.me/read-manga/from_today_on_i_m_a_boy/
https://www.mangago.me/read-manga/the_strongest_hero_s_party_wants_to_know_love/
https://www.mangago.me/read-manga/madoka_no_himitsu/
Here have fun and enjoy!
https://www.mangago.me/home/mangalist/1581724/
Can anyone recommend me some mangas or movies or series about a girl that hides her gender or dresses as a boy please