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Siblings (Family Relationships, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Siblings (Family Relationships, Kindle eBooks), updated Nov 2, 2026: median price $5.49, median 1,230 reviews, average rating 4.4 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $9.88 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 3.5× those of the parent category Family Relationships, harder to enter than the parent as a whole.
- Its review barrier is higher than in 90% of Kindle eBooks categories: the median best seller has 1,230 reviews, so new books need time to build up.
- Prices spread wide: the middle half runs from $3.99 to $9.88, so budget editions and premium or boxed sets sell side by side.
Top 10 Siblings best sellers
-
A Little Pinprick (Rainey Paxton Series Book 1)
by Paige Dearth
- List rank#1
- Price$6.99
- Rating4.5
- Reviews7,420
-
The Land and Its People: Essays
- List rank#2
- Price$14.99
- Rating4.5
- Reviews3,241
-
Habits of the Household: Practicing the Story of God in Everyday Family Rhythms
- List rank#3
- Price$7.99
- Rating4.8
- Reviews3,071
-
The Names: 'The best debut novel in years' Sunday Times
by Florence Knapp
- List rank#4
- Price-
- Rating4.2
- Reviews66,619
-
Reborn before they could Destroy Us: An Addictive Rebirth Story of Family Betrayal, Regret, Redemption, and Second Chances
by Tabitha Emmanuel
- List rank#5
- Price$5.99
- Rating3.8
- Reviews45
-
Wanted Wed Or Alive: The G.D. Taylors Series
by Willow Aster
- List rank#6
- Price$4.99
- Rating4.4
- Reviews4,213
-
The Shooter's Sister (Raven Ledger Duet: Book 1)
by Paige Dearth
- List rank#7
- Price$6.99
- Rating4.5
- Reviews2,063
-
Made For You: A grumpy sunshine sports romance. (Made For Series 2)
- List rank#8
- Price$5.99
- Rating4.7
- Reviews4,407
-
Made For Me: A friends to lovers sports romance. (Made For Series)
- List rank#9
- Price$5.99
- Rating4.5
- Reviews4,538
-
The Twin Sister (Raven Ledger Duet: Book 2)
by Paige Dearth
- List rank#10
- Price$6.99
- Rating4.7
- Reviews2,689
Same niche in Books: Siblings
FAQ
Is Siblings a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 1,230 reviews and sells for $5.49.
How many reviews do you need to rank in Siblings?
The median best seller has 1,230 reviews, and 24% of them have fewer than 100.
What do Siblings best sellers cost?
The median price is $5.49; half of the best sellers are priced between $3.99 and $9.88.
Can new books break into Siblings?
6% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.