I know I'm very far behind the curve, but I finished the 3 series of Stranger Things last night.
It's maybe a little repetitive, but I haven't enjoyed something that much in a long time. Its funny, the music is so good and the characters are great. I'm pretty immature for someone nearer 30 than 20, so it suited me really well!
Think I'm going to go for the Queen's Gambit next. It came up as my next recommendation on Netflix and I've nothing else in mind. It looks like the main character on it is from peaky blinders?