Start with high-confidence soul food & southern cooking books, then narrow by subgenre or adjacent topics.
The Cooking Gene
Michael W. Twitty
Carla Hall's Soul Food
Carla Hall, Genevieve Ko
The Way Home
Kardea Brown
Make Do With What You Have
The Taste of Country Cooking
Edna Lewis
Rufus Estes' Good Things to Eat
Rufus Estes
In Pursuit of Flavor
Praisesong for the Kitchen Ghosts
Crystal Wilkinson
Jubilee
Toni Tipton-Martin
Cooking for the Culture
Toya Boudy
Tanya Holland's California Soul
Tanya Holland