Some Twilight 2000 inspiration: The Americans series.
Set in the early Reagan Administration, the show depicts the activities of Soviet “illegals” – agents under deep cover, living as American citizens.
It’s Cold War espionage. Immerses you in the 80s. The tech, the attitudes, the preoccupations, and fears of the time. Lots of communist Soviet KGB plot.
I’m wrapping up the second season, and it’s been smart and interesting thus far.