I’m taking part in a few author / book promotions. This one and this one both offer free reads from authors of crime, thriller and mystery books. To claim these you must subscribe to the authors’ newsletters, but you can opt out any time if you decide you don’t want to keep receiving them.

There’s also this one which has mystery and thriller books for sale. Finally this one has cosy mystery books which are for sale, or can all be read via kindle unlimited.

Hopefully you’ll find something of interest in one of those!