IS THERE EVEN A FANTASY/ACTION MANHWA/MANGA WITH FEMALE MC BUT NO ROMANCE OR LOVE INTEREST...

(Warning: some of these contain dark themes/images)
I Became the Male Lead’s Adopted Daughter (more fantasy than action, but no romance so far)
Gokurakugai (one of the leads is a female and she's super badass)
Miss Guillotine (technically not categorized as fantasy or action, but falls within that realm. As far as I remember, no romance with the mc)
Totsukuni no Shoujo (more fantasy than action, but an interesting story and unique art)

https://www.mangago.me/read-manga/hero_killer_1/
https://www.mangago.me/read-manga/survive_romance/

Delivery knight
Soloist of the Prison
Reiri