This is a list of some of the dramas I have watched that have strong female leads. I honestly don't think you're looking hard enough because I hate dramas that have weak/naive leads, so I rarely watch them but I haven't had a problem finding dramas to watch. I don't think you've watched all of the series that are post-2019 because their are HUNDREDS that would fit your requirements, just keep looking. I would define a strong female lead as someone that is stubborn, speaks their mind, doesn't get bullied, and is a go-getter. I assure you that in these dramas you won't get mad over the female lead being naive/stupid, majority of them are beautiful and intelligent women, but I wouldn't necessarily call them badass.
1. Extracurricular - I found the FL to he annoying not because she's stupid/naive but because she was getting involved in other's business.
2. Crash Landing on You - the FL in this show is smart and crafty.
3. Kill It - I could've cared less for the FL in this show cause I cared more about the ML but she's a detective.
4. Angel's Last Mission: Love - the FL is blind and knows how to take care of herself without needing a man.
5. Memorist - the FL is a detective.
6. The World of the Married - the FL may seem weak in the first few episodes but she is FARRR from it. I think she might fit into that badass category of yours. She earns my respect.
7. Search: WWW - multiple examples of strong women in this drama and the FL is one of them, this show made me feel empowered.
8. Hotel del Luna - the FL is low-key a b*tch, definitely not a pushover.
9. Graceful Family - the FL here is also a b*tch, she refuses to show her weaknesses in front of people, admirable.
10. Find Me in Your Memory - the FL is strong in the sense that she knows what she wants and goes for it, she's also not a pushover.
11. It's Okay to Not Be Okay - the FL has antisocial personality disorder which means she holds disregard for other people. She does what she wants and doesn't really think of the consequences.