Please understand, this list is my personal list and I am not in any way endorsing any of these services for you to use.
Editorial and Production
BETA READER(S)
Romance Refined
COPYRIGHT, ISBN AND BARCODE
Bowker US
Copyright Office (eCO)
COVER ART AND ARTIST(S)
CT Cover Creations
Period Images
SLP Photography
Wander Aguiar
EDITOR(S)
Yellow Bird Editors
FORMATER(S)
CJ Douglass
PRINTER(S)
Amazon
Barnes and Noble Press
Lulu
Distribution and Marketing
DISTRIBUTOR(S)
Amazon
Barnes and Noble Press
iTunes Connect
Smashwords
Draft2Digital
PROMOTIONAL SITES
All Author
Amazon Author Central
Apple
Book+Main Bites Romance
BookBub
Books2Read
FictionDB
Goodreads
Leone’ Sweet
Smashwords
The Independent Author Network