This article was released in 2020 therefore the dramas that air in 2021 and 2022 are not mentioned
https://time.com/5835519/best-korean-dramas-netflix/
Crash Landing on You (2019-2020)
Itaewon Class (2020)
Mr. Sunshine (2018)
Kingdom (2019-2020)
When the Camellia Blooms (2019)
Signal (2016)
Hi Bye, Mama! (2020)
Prison Playbook (2017)
Stranger (2017)
The Reply series (2012-2016)
-Stranger is the best drama I have ever watched in my life, the most legendary in the history
-I enjoyed every single drama listed here except for Hi Bye, Mama and Prison Playbook
-They're all indeed great dramas, but Hi Bye, Mama?
-Hi Bye, Mama is a good drama if you only watch it to see Kim Taehee's face
-Hi Bye, Mama is the worst drama I have ever watched...
-Leave out Hi Bye, Mama. It's literally the worst drama ever.
-Signal, Stranger, and When The Camellia Blooms are the best dramas I have ever watched in my lifeㅠ
-I think the writer just lists the dramas that are popular overseas and the ones they personally enjoy...
-Hi Bye, Mama?ㅋㅋㅋㅋ Seems like it's quite good for their standardsㅋㅋㅋ
-I have only watched two of these dramas...ㅋㅋㅋ I guess I don't watch dramas that often...
-Why is Hi Bye, Mama listed here?
-I guess I'm not the only one who got shocked to see Hi Bye, Mama in this list...