I started watching it because I wanted to see what the hype was about, but I was instantly impressed by just how good it was. The writing, acting, direction and themes are consistently strong, and while the ending was a little strange, it's overall phenomenal.
Worth watching, but only watch in English if you think you can get over the dubious dub. After a few episodes it mostly stops bothering you, but it's probably better to watch in Korean with subtitles if you're sensitive to that.
Crash Landing on You (2019) has like every single romantic comedy trope and it was still fun. Kingdom (2019) was also good. It was a fresh take on zombies and suspenseful, but season 2 left on a cliffhanger and season 3 is in limbo.
edit: I forgot Mad for Each Other (2021)! Another mostly romantic comedy about a guy with anger issues and woman with paranoid delusions as neighbors. It's quirky and quick paced. (tho TW for past domestic abuse.)
It's the only Korean movie I've watched. I guess it's technically a zombie/horror movie but I would argue that it's still pretty dramatic and should count as a drama.
Everything that Bong Joon Ho has ever made. I've recently watched Mother (2009) and Memories of Murder (2003) and after watching these, including Parasite, I've got to say he is one of my favorite directors. He is just amazing.
Also I've got to say that some of my favorite movies are korean movies. They got some amazing horror movies like I Saw The Devil. I'm going to continue watching them as they are amazing at what they do.
Juvenile Justice was really great, but it's hard to say why without getting into spoiler territory. Let's just put it down to overall character development.