Here are some strong FL's, either mentally (smart, willpower) or physically (strength, power, hidden talent, whatever)
1. https://www.mangago.me/read-manga/trapped_in_a_cursed_game_as_an_npc/
2. https://www.mangago.me/read-manga/i_became_the_despised_granddaughter_of_the_powerful_martial_arts_family/
3. https://www.mangago.me/read-manga/the_way_to_protect_the_female_lead_s_older_brother/
4. https://www.mangago.me/read-manga/charlotte_has_five_disciples/
5. https://www.mangago.me/read-manga/when_i_traveled_to_another_world_i_was_forced_to_be_the_princess_of_the_city/
6. https://www.mangago.me/read-manga/i_m_a_martial_art_villainess_but_i_m_the_strongest/
7. https://www.mangago.me/read-manga/shadowless_night/
8. https://www.mangago.me/read-manga/a_fortune_telling_princess/
9. https://www.mangago.me/read-manga/i_raised_my_fianc_with_money/
10. https://www.mangago.me/read-manga/kill_the_villainess/
11. https://www.mangago.me/read-manga/death_is_the_only_ending_for_the_villainess/
12. https://www.mangago.me/read-manga/confined_together_with_the_horror_game_s_male_lead/
i really love burning effect/burner and uglyhood, one thing in common between these two is the strong female main character. i love love love them. please send recommendations. oh i recently started reading sss rank hunter the new isekai shoujo, its pretty good too