Ordered by quality (best on top)

• Sopranos (…is the absolute GOAT)
• The Wire
• Band of Broters
• Generation Kill
• Bron (The Bridge - the original Swedish version)
• Narcos and Narcos Mexico
• Sense8
• Mr. Robot

Then there are some more good ones from recent times:

• Down Cemetery Road was not bad
• Slow Horses is close to making it to my all time Top X list
• SAS Rogue Heroes is a good watch too
• Masters of the Air is worth it for the visuals
• Sherlock is my wife’s favourite
• Undercover and Ferry, 2 Dutch series are very good and vibey
• The Borgias was good, shame they had to finish it halfway

There, this should give you a considerable backlog.