If you enjoy Le Carré and haven't checked out the Slough House series (novels and mini series on Apple TV) you're in for a treat. It's not exactly Le Carré, but it's definitely Cold War caliber spy fiction set in the present day with a very Smiley-esque old spy master and a budding young spy who is learning to think like a Smiley rather than act like the Bond he's been trained to be.
The conversations are pretty snappy and deadpan, reminiscent of one of the writer's previous work on Veep and The Thick of It, this show is often funnier to me than many comedies.