Find books "just like" a favorite by using it as a starting point. I'm going to (yes, again) use myself as an example.
Although the trend has been around quite a while, I'm still looking for psychological suspense that features an unreliable narrator.
I enjoyed Before I Go To Sleep by S. J. Watson a lot so I'll start there.
Scroll down the book record page to the Search for More box at the bottom to see all of the cataloging
I checked the boxes for psychological suspense and unreliable narrator and clicked search.
You'll see expected titles on the result list, such as The Girl on the Train and Gone Girl, but there are 53 more adult fiction titles to review.
(And since I'd done the work, I went ahead and made a printable for the topic. More bang for the buck, right?)