If you liked Stranger Things you would definitely like this show. The show events take place in a fictional town Winden in Germany. The disappearance of two young children bring four families with dark past, fractured relations and double life together. The ties between the missing children and the histories of the town and its citizens and the connection between the four families comes out as the show proceeds. This show has time travel, parallel reality, future events, secrets and much more which makes the show a must watch. It has 3 seasons and you will enjoy each season and wait for the next to start. The show is slowly gaining popularity around the world.
So let me know by commenting if you like this list of Sci-Fi Shows of this decade. Also let me know if some other shows which should be on this list.