Ok so just to clarify i ve watched all those series that are 2019 and below and had a strong badass female lead. But unfortunately the new c dramas k dramas  have mostly these soft naive acting  female leads which is not my cup of tea. started watching the romance of tiger and rose, love for a thousand years ...... but wasn't really what i m looking for .... 

Help me plzzzz :'(

1. Handsome Siblings (Although SuYing only appears in like the last 14 episodes, she's one of my fav cdrama female lead)

2. Love In Between (ml is very intelligent but weak and fml is the one who can fight)

3. Mystic Popup Bar (maybe)

4. It's Okay to Not be Okay (QUEEN)

 HimeSama:
i ve watched all those series that are 2019 and below and had a strong badass female lead

Without knowing your definition of "strong badass", I can't know for sure, but this does seem like a very sweeping statement., especially since your MDL profile lists only eight shows in total. Going by a definition of strong (badass is usbjective) as independent and competent without needing to rely on a man, here are some from the last couple of years that it's just possible you may not have ssen, and might find worthwhile to check out:

Diary of a Prosecutor

XX

Legal V (badass too, imo)

Hidarikiki No Eren

Graceful Family

Running Mates: Human Rights

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.