Endorsement after review needed for a historical new graphic novel

Hi, Im looking for a publishing agency, newspaper, media company, or any endorsement organization to review my new novel and write me a short sentence to add it to the cover to help in the sales, Im looking for someone who has contacts or work with or part of a team of large publishing agency or newspaper or magazine or organization who have well known powerful name globally, Kindly let me know if you can help in this and we can discuss the process Thanks