Here are links to some sources for helps -
These are individuals who do freelance work for a fee ($-$$$)
Fresh Eire Designs
Get a free promotional listing by submitting a 'blurb' of your book, information about a book signing or public appearance.
OK Writers and Authors Blog
Author Junction Blog
Pre-Publication Service. Send your manuscript, cover or cover text in a .pdf and a professional librarian with cataloging experience will develop a catalog record for use on the verso of your title page. This will provide assistance to library book buyers especially. Fee $50.00 (catalog record with subjects and summary, basic Dewey Decimal and Library of Congress Classification numbers)