What I love about such series - also with "The Americans" - that they are not black and white. There are lots of shades of grey and in the end you cannot tell who are the good and who are the bad guys as the good guys do bad stuff and the bad guys turn out not to be so bad at all.

Oooh, have you ever seen "Timeless"? That's a time-travel show that starts off where you think everything is totally black and white, and then as the episodes progress, it suddenly gets a lot grayer. I think you might really like it.