Start with high-confidence regional studies books, then narrow by subgenre or adjacent topics.
The Italians
John Hooper
Deep South
Paul Theroux, Steve McCurry
Habits of the Heartland
Lyn C. Macgregor
Hollowing Out the Middle
Patrick J. Carr, Maria J. Kefalas
Rural Communities
Cornelia Butler Flora, Jan L. Flora
After Coal
Tom Hansell