niche-hunter

【数据与研究】Agent 01 - Blue-Ocean KDP niche research. Finds high-profit, low-competition book niches using 9 data sources + BSR-to-revenue math + Opportunity Score. USE WHEN user says: find KDP niches, kdp niche research, book niche, coloring book niche, low-content niche, activity book niche, blue ocean, bestseller idea, winning niche, what book should I publis…

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