I've watched about 37 Korean "dramas" on Netflix, and yes, they are well done. Two of my favorites are Crash Landing on You, and Extraordinary Attorney Woo. And of course can't forget the infamous Squid Game.
Yes, also
Lawless Lawyer, and
Vincenzo. One of the most interesting Korean shows relating to gaming and virtual reality is titled,
Memories Of The Alhambra. The ending is somewhat of a slight cliff hanger, but otherwise it is an impressive show where the participants can't distinguish reality from virtual.
If you can "get over" the lips of the female lead, which by the way is a superb Korean actress, Netflix has aired 12 of 16 episodes of,
Under The Queens Umbrella. There are some Korean shows for the "romanticos" (romantics), including:
One Spring Night
Beauty Inside (romance and fantasy)
The King (romance, inter-dimensional travel, intrigue)
Crash Landing On you
Back Street Rookie (young Korean actress with a perfect set of teeth
The K2 (includes martial arts, and such)
My Sassy Girl (romance, quite entertaining, too)
Live To Your Name (medics from the past and present, time travel, romance)
My Mister (one-sided love, maybe. A very poor young woman and a middle-age man develop a sense of "kinship." No, this show is not about an older guy having a romantic relationship with a poor girl, but about her struggles to survive, and how the colder guy helps her along the way. In case you don't know who the young female lead actress is: Lee Ji-eum (IU) a Korean singer. She is quite a good actress, and the lead actress at
Hotel del Luna.
Some Chinese shows are quite good, but very long. For example at "viki:"
The Rebel Princes (intrigue and politics at the palace, war, and romance)
Love Between Fairy And Devil (this one is being aired at Netflix, but I watched at "viki" already)
Love Like The Galaxy (war, kingdom politics and struggles, romance). The female and male lead actors are in the 20's, but quite good at what they do.
By the way, since I dislike unhappy endings I only recommend these (above) and other "like" shows.