

Ripley wins hands down. That would be true if only for the cinematography, but it is for so much more too.
Another comment mentions Slow Horses, and I’d agree on that. Great fun.
Wolf Hall is another with excellent writing and performances.
And Shrinking, which has far exceeded my expectations.
Then a single episode of Agatha All Along stood out. Ep 7, I believe, without checking. Great use of non-linear storytelling. The rest of the season was entertaining, but nothing more.
Baby Raindeer also had a standout episode. You’ll know it when you hit it. Despite the controversy about the events this show was based on, it contains plenty of truth of its own.
Finally, we are rewatching the 1979 Tinker, Tailor, Soldier, Spy. Both this and the more recent film version are excellent from the first scene. This one still holds up fantastically well decades later.
It’s based on the Hillary Mantel novels - a fictionalised biography of Thomas Cromwell and his role at Henry VIII’s court.