Suggest me a mystery that isn’t depressing

Lately I feel like every mystery/thriller I’ve read has been so sad, a lot of TW’s, and focuses on depressing plots a lot. Which I don’t mind, but I’m in a reading slump and I really want to read a great mystery book without the depressing trope.

Some ideas of what I loved that didn’t focus on something sad:
And Then There Were None,
Riley Sager stories,
Everyone in My Family Has Killed Someone,
Killers of a Certain Age,
Finlay Donovan series,
The Lies I Tell

by coolstina4