You can find a cover from Book Designers to get a reduced as $750; this provides 3 to 6 cover designs and 3 rounds of revision. Having said that, most authors who use their services choose For additional inclusive deals that improve the price. The covers on their own cover https://whitemagicstudios.co.uk/blog/how-to-become-a-writer-opt-for-self-publishing-a-book-on-amazon/