Action & Adventure — Kindle Category Opportunity
Competition snapshot for the Romance best-seller list, ease-of-entry score 7.0/100.
Category metrics
Score
7.0
Median reviews
3,791
Weak share (top 20)
10%
Median price
$4.99
Median star rating
4.4
Books scanned
50
Worth writing in?
Action & Adventure is heavily defended: incumbents are deep-reviewed and the top 20 rarely cracks. New releases can still chart with ads or a launch push, but expect to climb over established authors rather than around them. Ease-of-entry score 7.0/100.
Breakout books — top 15, under 100 reviews, $0.99–4.99
Best-seller list on Amazon| # | Title | Star | Reviews | Price |
|---|---|---|---|---|
| 14 | The Innocent (Killcreek Drifters MC Book 3) | 4.8 | 62 | $4.99 |
| 10 | Awakened (The Last Daughter Book 2) | 4.5 | 88 | $4.99 |
High-frequency phrases in this category's titles
Mine all categoriesHigh-frequency phrases mined from the 50 best-seller titles on this category's list. The ease-of-entry score tells you how winnable the category is; these title phrases tell you which words readers search with — use the two layers together. Frequency is a title statistic, not a search-volume estimate.
| Phrase | Titles | Rank-weighted score |
|---|---|---|
| age gap | 8 | 256 |
| age gap bratva romance | 5 | 187 |
| mafia romance | 7 | 167 |
| brother an age gap | 2 | 75 |
| second chance | 2 | 69 |
| marriage mafia romance | 2 | 41 |
| grizzly shifter alpha romance | 2 | 22 |
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Category research picks the direction; review diagnosis reads the readers. The same platform clusters a book's critical reviews into severity-ranked root causes, each anchored to verbatim quotes — see it applied to a full narrative-history title.
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Research snapshot scanned on Oct 19, 2026. Refreshed periodically — not live tracking.