All time and in no particular order.
Black Sails. Pirate action. All the sex and violence of GOT with less chatter.
Penny Dreadful. Eva Green and Timothy Dalton as 1800s vampire hunters.
Monarch. Giant monsters and cut throat politics makes a great combination.
I, Claudius. Old BBC series about the first four Roman Emperors. Look for a very young Patrick Stewart.
The Prisoner. Another oldie. Franz Kafka and Ian Fleming got together and did an episode of Dr. Who.
The Americans. Soviet spies undercover in 1980s Washington, DC.