Since most of the popular series like GOT, The Flash et al. are on a hiatus, here are 7 not so popular series you should consider watching. I ranked them in ascending order of their reception on Rotten Tomatoes.
NB: an asterisk implies a season is ongoing.

7. Blindspot
Tomatometer: 68%
Number of season(s): 1
Episodes: 23
Synopsis: Blindspot focuses on a mysterious tattooed woman who has lost her memory and does not know her own identity. The FBI discovers that each tattoo contains a clue to a crime they will have to solve.
Stars Jamie Alexander ( Jessi in Kyle XY and Sif in Thor/Agents of S.H.I.E.L.D) and Sullivan Stapleton ( from Strike Back and 300: Rise of an Empire).

6. Cleverman
Tomatometer: 88%
Number of season(s): 1
Episodes: 6
Synopsis: The six-part drama series reimagines several stories of the Aboriginal Dreaming in a modern, superheroic context, and reflects on racism, asylum seekers and border protection. Its central story revolves around two estranged indigenous brothers who are forced together to fight for their own survival when one of them is passed the mantle of the "Cleverman". Creatures from the Dreaming also feature in the series' real world dystopian landscape.

5. Preacher
Tomatometer: 89%
Number of season(s): 1
Episodes: 10
Synopsis: When Texas preacher Jesse Custer is inhabited by the renegade spawn of an angel and a demon, he gains the power to control people with just a word. Now Jesse, his badass ex Tulip, and his friend Cassidy (who happens to be a vampire) are thrust into a twisted battle spanning Heaven, Hell and everywhere in between.

4. The Last Kingdom
Most critics are calling it a British Game of Thrones (with a little less sex ).
Tomatometer: 92%
Number of season(s): 1
Episodes: 8
Synopsis: The setting is a historical one of England roughly around 800-900 A.D. The conflict involves the vikings who are eager to take more ground and the native English peoples or more correctly the Saxons who desire to hold the ground they have and repel the Vikings from England.

3. Jessica Jones
Whenever Netflix jumps on a Marvel material it always turns out good and Jessica Jones is not an exception.
It is set in the Marvel Cinematic Universe (MCU), sharing continuity with the films of the franchise, and is the second in a series of shows (after Daredevil) that will lead up to a Defenders crossover miniseries.
Tomatometer: 93%
Number of season(s): 1
Episodes: 13
Synopsis: Following a tragic end to her brief superhero career, Jessica Jones tries to rebuild her life as a private investigator, dealing with cases involving people with remarkable abilities in New York City.

2. Stranger Things
*In DJ Khaled's voice* Another one... from the stables of Netflix.
Tomatometer: 94%
Number of season(s): 1
Episodes: 8
Synopsis: On November 6, 1983 in the small town of Hawkins, Indiana, 12-year-old Will Byers vanishes mysteriously. Will's mother, Joyce, becomes frantic and tries to find Will while Police Chief Jim Hopper begins investigating, and so do Will's friends: Dustin, Mike, and Lucas. The very next day, a psychokinetic girl knowing Will's whereabouts is found by the boys. As they uncover the truth, a sinister government agency tries to cover it up, while a more insidious force lurks just below the surface.
1. Mr Robot
The most critically acclaimed and my favourite of the lot (okay maybe I'm a wee bias 'cause I'm studying computer science).
Tomatometer: 98%
Number of season(s): 2
Episodes:
Season one: 12
Season two: 7*
Synopsis: Elliot Alderson, a cybersecurity engineer and hacker who suffers from social anxiety disorder and clinical depression. Alderson is recruited by an insurrectionary anarchist known as "Mr. Robot", to join a group of hacktivists. The group aims to cancel all debts by attacking the large corporation E Corp.
Stars Rami Malek( King Ahkmenrah in Night at the Museum trilogy).

So guys, which one of 'em have you watched or do you plan on watching?

Op you deserve a medal. This list is sooooo on point.

I need more