It is better not to watch any. After watching those tv series and talent shows regularly for over a year, it transforms people kind of into robots, and cause them to lose ability to think and question. It is a scientific fact. Not to mention the fact that those overpaid, so-called stars get $500,000 per episode while you get nothing for watching them.
Are you looking for shows similar to Game of Thrones? If so, I would recommend Spartacus for sure. If you're looking for just any suggestions, I've been watching a lot of A.P. Bio, Ash Vs. Evil Dead, Supernatural and much more that I'm probably forgetting.