Finding Low-competition, Already-selling Amazon KDP Book Niches Using Niche-research Software
Originally published Sep 13, 2026 — JeffSetLife
JeffSetLife · I Found 5 Unsaturated Book Niches to Sell on Amazon KDP + Etsy ↗
Use a niche-research tool to find KDP book categories with a 'demand vs opportunity' sweet spot: real, active buyer demand and existing sales, but few total competing listings so a new book isn't buried immediately. The presenter identifies five specific current examples this way (paper doll books for girls, nonogram puzzle books, monochrome mystery coloring books, pixel mystery/color-by-number books for kids, and dot-marker vehicle coloring books), each with real per-book estimated monthly royalties pulled from the research tool, and notes most of these same book concepts can be repackaged as printable digital downloads on Etsy for a second income stream from the same content.
For each niche, the presenter shows specific competing books' estimated monthly royalties (ranging roughly $100 to over $3,000/month per title depending on the niche), and demonstrates that some of these are simple enough to create with AI image tools plus a specialized formatting tool rather than requiring artistic skill.
Someone comfortable using a niche-research tool to validate demand before creating a book, and willing to create simple visual content with AI-assisted tools.
Using niche-research software to find underserved-but-proven KDP categories is a real, sound market-validation practice, and the specific royalty estimates come from the research tool's own tracking data, though third-party royalty estimation is inherently approximate, not verified sales. The specific niches named will naturally saturate over time as more publishers watch the same videos.