I’m in the US so I’ve mostly watched US TV shows, I’ve been wanting to watch shows made by other countries as there must be some great ones that never took off in the states.
I’ve seen a few I could recommend like Alice in Borderlands (Japanese), Gangs in London (UK), Lupin (French)
From Australia, there’s Rake, Miss Fisher’s Murder Mysteries, and The Nowhere Boys, although for that last one only the first 2 seasons.
My current Australian obsession is Bluey.
Doc Martin, Merlin from the UK.
Murdoch Mysteries earlier seasons from Canada.
I also enjoyed a few Korean drama series like Misaeng.
And this is really old from Japan, but Bayside Shakedown drama was really fun.
Other Japanese dramas I liked include Proof of the Man, Aibou, and Shinzanmono. I love Japanese police dramas and mysteries.