This Page will have listings of sites that do book reviews. Some are free but have an option for payment to accelerate the review process. Some actually charge to do a book review. The sites listed have either been used by myself or I have analyzed their site for quality of service and/or quality of their site. The sites listed sometimes limits the kind of books that they will review. Check out which sites will do your type of writing. Book reviews are a great way to gain exposure for your book and possibly increase sales.