The Killing, on Netflix, looks promising too.
Anyone watched it?
The original Dutch version, "Forbrydelsen", was quite good. The first season is a bit slow as it tries to show the impact of the crime on the family and all the twists and turns taken by the investigation, but it's very intense. You do have to put up with subtitles if you don't speak Dutch. I've not seen the American remake, "The Killing".
+1 on "Longmire" and "Breaking Bad".
@Joan, "NCIS" is currently in season 19, so there might be more to watch than you realize.
I'm currently re-watching "Justified" and "The Wire". I find both to be greatly above average. "The Wire" is one of the best TV series I've ever watched.
I quite enjoy British crime dramas. British TV seems to mostly take a different approach. Instead of agreeing to make X shows per season and then having to churn out X scripts, they produce scripts at whatever is a reasonable pace for quality and then make a series of shows when they have enough scripts. This results in fewer shows of generally higher quality. Most of the time.
"Midsomer Murders" is generally enjoyable. It's in its 22nd season, so they must be doing something right.
"Poirot" is quite good. "Lewis" is one of my favorites. It follows the career of Robbie Lewis, DS to Inspector Morse, after he's been promoted to DI. "Endeavour" is another Morse related series, following the early career of Morse before he's made Detective Inspector. "Vera" is another detective show, this time with a female lead. Don't judge this one by the first episode. I found the first episode a disjoint mess. The remainder of the series is not like that. In a somewhat lighter vein, "Rosemary and Thyme" is about two landscapers who solve crimes in their spare time. It's not quite as goofy as it sounds. I enjoyed it a lot. "Father Brown" is a period dramedy about a priest who meddles in the police solving crimes. Somewhat similar, though much darker, is "Grantchester", about a priest who works with a police detective to solve crimes. This one delves into a number of "woke" topics so it may not be everyone's cup of tea.
Moving from Britain to down under, "The Brokenwood Mysteries" is one of my favorites. It's sort of "Midsomer Murders" goes Kiwi. Quirky locals add levity and charm. Breaking from the crime drama theme, "800 Words" is a fun series about a magazine columnist who moves with his two high school age children, following the death of his wife, from Australia to a New Zealand beach town he visited as a youth.
If you find you like British TV, check out
I Heart British TV. They have a rundown of what British TV is showing where. It's a great resource for discovering shows you've probably missed if you're not British.