Not completely shojo but try the witch and the mercenary, or the female knight!
try this one
https://www.mangago.zone/read-manga/light_shadow/
and the sequel
https://www.mangago.zone/read-manga/golden_time_ryu_hyang/
Age of arrogance
Beware of the villainess
I tamed the crazy marquis
Crimson karma
Here’s a bunch of female knights The last 2 are manga, while the rest are webtoons/manhwas, hope you have a happy reading dear!
https://www.mangago.zone/read-manga/falling_for_the_enemy/
https://www.mangago.zone/read-manga/the_baby_isn_t_yours/
https://www.mangago.zone/read-manga/irregular_empress/
https://www.mangago.zone/read-manga/emperor_and_the_female_knight/
https://www.mangago.zone/read-manga/crimson_karma/
https://www.mangago.zone/read-manga/return_of_the_female_knight/
https://www.mangago.zone/read-manga/second_life_on_the_red_carpet/
https://www.mangago.zone/read-manga/sigrid/
https://www.mangago.zone/read-manga/reminiscence_adonis/
https://www.mangago.zone/read-manga/ice_flower_knight/
https://www.mangago.zone/read-manga/cinderella_wasn_t_me/
https://www.mangago.zone/read-manga/light_shadow/
https://www.mangago.zone/read-manga/as_you_wish_prince/
https://www.mangago.zone/read-manga/i_tamed_the_crazy_marquis/
https://www.mangago.zone/read-manga/shoujo_kakumei_utena/
https://www.mangago.zone/read-manga/umi_no_kishidan/
pleaseeee i'm so sick of these medieval female main characters that are all innocent and stuff please give me some badass/magical/swordswomen main characters