The 100 (Though not a Netflix original... plus the ending is terrible.)
Erased (Originally known as Boku Dake Ga Inai Machi. Netflix has both the cartoon and the drama, but the drama has a better ending. Plus not everyone likes cartoons.)
My Name (A Korean drama.)
Midnight Diner (A Japanese drama.)
Million Yen Women (Another Japanese drama.)
The Disastrous Life of Saiki K (A Japanese cartoon.)
13 Reasons Why (This one could be a bit too dark for many.)
Stranger Things
There are more, but these came to mind first.