I binged all 3 seasons of Narcos over the holiday and thought it was excellent. I haven't started Narcos Mexico but I'd imagine it's good as well.
If you've never seen Breaking Bad make that one a priority. IMO seasons 3-5 of Breaking Bad are the best of any drama series ever. If you have seen Breaking Bad, or after you watch it, be sure to check out El Camino. It's essentially a 2 hour continuation of the series packaged as a movie.
Many recommend Stranger Things but personally I thought it was overrated. I've only watched season 1 and thought it was entertaining, but not as good as most seem to think. I've heard that s2 and s3 aren't as good as the first so I'm not sure I will watch them.
Mindhunter is pretty good. I didn't like the lead actor at first (Holden Ford, played by
Jonathan Groff), but it grew on me and now I'm anxiously awaiting season 3. I am a David Fincher fan so I stuck with it and am glad I did. The music in the show is exceptionally well done and adds to the creepy vibe. The actor that plays Ed Kemper does a phenomenal job.
I've lead lots of praise for Black Mirror so I watched the first episode and didn't like it. That episode isn't for you if you have a weak stomach. Since each episode stands alone some online reviews suggest an order to watch it in to view some of the better, and less disgusting, episodes first before getting grossed out. I haven't given up on it yet but it's low down the list in my queue.
If you like tech and British comedy definitely check out The IT Crowd.
Some quick recommendations from Amazon: Curb Your Enthusiasm, Band of Brothers, Sopranos, The Wire, Mr. Robot, The Americans, The Big Sick (movie)