Now that you have Acorn,
You might enjoy the following series:
Brokenwood- It's set in New Zealand and is quirky, but the characters are fun and the mystery is usually interesting as well.
Vera- set in northern part of England. They no longer have all of this series as some seasons got picked up by Britbox. But well worth a watch of the seasons they do have as Brenda Blethin is wonderful as DI Vera Stanhope. Good mysteries as well and great supporting characters.
Foyle's War- Set in England during WWII, Great series. I've watched it several times. Foyle is a Detective with the local police. The mysteries are well done, the characters are well acted and the series does a great job with the historical setting and showing what life was like in England during WWII.
Shetland- set in t he Shetland Isles. I think the books that inspired this series were written by the person who wrote the Vera Stanhope novels.
Rob