Start with high-confidence football coaching books, then narrow by subgenre or adjacent topics.
Patriot Reign
Michael Holley
On Rocky Top
Clay Travis
Badasses
Peter Richmond
Everyone's a Coach
Ken Blanchard, Don Shula
Getting to US
Seth Davis
Three and Out
John U. Bacon
It's Better to Be Feared
Seth Wickersham
The Why Is Everything
Michael Silver, Mike Chamberlain
The Score Takes Care of Itself
Bill Walsh, Steve Jamison
The Tao of Chip Kelly
Mark Saltveit
Controlled Chaos
The Players' Coach
Tom Moore
Elevate and Dominate
Deion Sanders, Don Yaeger
Football Done Right
Dan Woren, Michael Lombardi