My all-time favorite series is called "Dark". It would have been good for learning, had it not be because the timeline, plot, and basically everything on it is amazingly confusing (that's part of its magic). However, the dialogs show at a good pace and the subtitles are also good.
Another German show I watched is "How to sell drugs online". The show is quite good in my opinion, but I wouldn't recommend it for learning because the dialog is too fast, and the last time I checked it didn't have any subtitles.
What are your favorite German shows? Also, if you have used any non-german shows with translations to learn, I am interested in hearing your experiences with them. I remember learning the word "verrückt" from the dubbing of Bojack Horseman.