Things I have watched and loved:
The Fall
Mindhunter
Top of the Lake
Twin
Unbelievable
Things I have tried but couldn't get into:
Ozark
The Stranger
Unabomber
The Sinner (loved the first one with Jessica Biel, but subsequent seasons dragged on).
How to get away with Murder
Can anyone recommend anything particularly thrilling? Series like Normal People and slushy stuff aren't really for me. Nor am I into comedy particularly.
I love thrillers and serial killer type dramas, and am unlikely to deviate from that 
Thank you!