Start with high-confidence sports betting books, then narrow by subgenre or adjacent topics.
The Bookie
Art Manteris, Matt Birkbeck
Trading Bases
Joe Peta
On the Edge
Nate Silver
Sports Betting for Winners
Rob Miech
Everybody Loses
Danny Funt
The Everything Guide to Sports Betting
Josh Appelbaum
Losing Big
Jonathan D. Cohen