What are the best Series i shoud watch?

I would really have to recommend Black Mirror, It's on Netflix. It's a Sci-fi show about the dark side of technology and our future.
Another show on Netflix I would recommend is The End of the F***ing World. I'm not too sure how to explain it but if you watch the trailer, it'll make more sense. The show is on the shorter side with 8, 20 minute long episodes.