Bargain Booksybargainbooksy.com
PaidDiscounted-ebook ($0.99–$5) sibling to Freebooksy.
BKnights (Fiverr) alternatives
18 promo & deal sites tools for self-published authors, similar to BKnights (Fiverr). Compare pricing and platforms, then pick what fits your workflow.
Book Barbarianbookbarbarian.com
PaidSF/F-only deals to 55,000+ subscribers.
BookBub Featured Dealsbookbub.com
PaidThe most selective, highest-impact deal newsletter — 15M+ opted-in subscribers; per BookBub's editorial post, "only about 25% of submissions will be chosen for a Featured Deal."
BookDoggybookdoggy.com
PaidDaily free/discounted ebook deals.
BookGorillabookgorilla.com
PaidKindle deal newsletter; BookBub substitute.
BookRaidbookraid.com
PaidLow-cost deal promotion.
BookSweepsbooksweeps.com
PaidMulti-author giveaways to grow email lists + social following.
Web
Ereader News Today (ENT)ereadernewstoday.com
PaidLong-running selective deal site with loyal base.
EReaderIQereaderiq.com
FreePrice-drop alert service.
Freebooksyfreebooksy.com
PaidWritten Word Media's free-ebook promo with strong genre lists.
Goodkindlesgoodkindles.net
PaidDiscount ebook promo.
ManyBooksmanybooks.net
PaidFree/discounted ebook discovery site.
Web
NewInBooksnewinbooks.com
PaidNew-release-only promotion.
Web
Red Feather Romanceredfeatherromance.com
PaidRomance-only free/priced ebook & audiobook promos.
Red Roses Romanceredrosesromance.com
PaidRomance/erotica deals to 46,000+ subscribers.
Robin Readsrobinreads.com
PaidCurated daily deals to a "growing community of over 194,000 members"; accepts <10% of 100+ daily submissions; reviews are "only one factor" (no fixed minimum).
The Fussy Librarianthefussylibrarian.com
PaidContent-preference-matched promos (lower volume, high conversion).
Written Word Mediawrittenwordmedia.com
PaidParent network (Freebooksy, Bargain Booksy, Red Feather Romance).