DC Shows [TV Universe]:
The Flash - Very good consistently.
Arrow - Season 4 was bad. Latest season, Season 5 was arguably the best season of any DC TV Show ever. It was just bloody amazing.
Legends of Tomorrow - Time travel, team of superheros, plot holes but fun to watch.
Supergirl (meh)
Other DC Show:
Gotham
Marvel Netflix:
Daredevil
Iron Fist - Critics didn't like it but I enjoyed a lot.
Jessica Jones
Luke Cage
The Defends - Yet to air. League of superheros from shows mentioned above.
Other Good Shows:
Suits - Lawyers
Billions - Investment Bankers
American Gods - Based on a book, don't read too much into it's plot to avoid spoilers. Recent show, very good so far.
Black Sails - Pirates
Mr. Robot - Hackers
The 100 - Post apocalyptic society
Popular Shows I have yet to watch:
House of Cards
Breaking Bad
The Walking Dead
Prison Break
Dexter
Narcos
Game of Thrones
If you like cars then: Top Gear [Latest Season], The Grand Tour.
If you like anime then let me know, I'll recommend a sh!tload of those.