Drama where FL is really domineering but in a good and assertive way, not in an annoying way. and FL handles all her problems. Maybe kinda in like "hyena" but i want a bit of a serious FL, FL in hyena was playful and teasing, which is totally something I'm into but rn I'm looking for a serious domineering fl who can handle her shit. Bonus, if there's, is a Love interest, and double bonus if the ML/love interest is a cutie-patootie who loves her assertive ways

Love to Hate You could fit, the FL is very headstrong, competent, solves all her own problems and some of the ML's too haha.

In Cunning Single Lady the FL is strong-willed and assertive and uses that against the ML at first, he comes to love it though.

In Mr. Queen of course the FL (ML?) is super assertive and shocks everyone all the time. 

The King's Affection: FL is the king (in disguise), cold and assertive and strong. ML is her tutor but he finds her ordering him around adorable and falls for her

Who Rules the World: the FL is a folk hero, a strong fighter who solves her own problems, the ML loves that about her