Type a niche. Book Goldmine reads real Amazon searches, the books that already rank, their bestseller ranks, estimated sales and reviews, then scores every keyword and suggests the book to write. One click starts it in the Studio.

Google keyword tools tell you what people search on Google. Amazon buyers search differently, and a niche is only worth entering if two things are true on Amazon itself: people search for it, and the books ranking for it can be beaten.
Book Goldmine goes to the source. For your niche it pulls real Amazon search volumes for related book searches, reads the first page of Amazon results (price, rating, reviews), then opens the top books to get their Best Sellers Rank, estimated monthly sales and publication date.
Each keyword gets a 0–100 score: demand and proven sales against how entrenched the top books are, how many have fewer than 100 reviews, and how old they are. The editor turns the numbers into a plain verdict and, for good niches, a book idea that targets the gap.
Monthly search volumes from Amazon itself, for book searches related to your niche.
Best Sellers Rank of the top books, turned into estimated monthly sales.
Median reviews, books under 100 reviews and the age of the top books show where a new title can rank.
For promising keywords, a title and an angle that fill a gap, with "Write this book" into the Studio.
US, UK, Canada, Australia, Germany, France, Spain and Italy, in print or Kindle.
Paid eBooks competing on Google Play Books for the same searches, when Google provides them.
A topic or a book type: "gratitude journal for kids", "cozy mystery", "keto cookbook".
Pick the Amazon marketplace and paperback or Kindle.
Up to six real book keywords, scored, with the top books behind each number.
"Write this book" opens the Studio with the idea filled in.
Validate a niche before you spend a month on a book.
Journals, planners and coloring books live or die by niche selection.
See whether a sub-genre rewards new releases or is locked by big series.
Amazon search volumes, search results and product pages are collected through DataForSEO, a market data provider. Sales are estimates from each book’s Best Sellers Rank, using public BSR-to-sales benchmarks.
Demand (Amazon searches) counts for 30%, proven sales of the top 3 books 25%, how established the top 10 are (their median reviews) 25%, the share of top-10 books under 100 reviews 10%, and the age of the top books 10%.
Amazon’s related searches cover the whole store. "Keto snacks" is a grocery search, not a book opportunity, so only searches that are clearly about books on your subject are kept.
Each new analysis uses one Trend Goldmine search: 10 a month on Basic, 30 on Standard and 100 on Pro. A niche someone researched in the last 14 days is free and instant.
Join creators who turn ideas into published, sellable products with BookBlitzAI — no writing experience needed.
Find my niche