Mysteries that you can’t guess the ending of

Unfortunately I've gotten to a point where most mysteries aren't able to suprise me anymore. I'm usually able to guess the ending before I reach the halfway point of a book, which obviously ruins the suspense a bit. I'm looking for some recommendations for books that are difficult to predict, even for avid mystery readers. For reference, some authors that I've been enjoying lately are Rachel Abbott, Megan Collins, Mark Edwards, Riley Sager, and Paula Hawkins. I prefer to avoid books with graphic descriptions of sex crimes or domestic abuse, but other than that, I'm open to any subject matter. Thanks guys!