Start with high-confidence christian living books, then narrow by subgenre or adjacent topics.
A Grief Observed
C. S. Lewis, Madeleine L'Engle
Organic Church
Neil Cole, Leonard Sweet
One Size Doesn't Fit All
Gary L. McIntosh
Revolution
George Barna
Disciplines of a Godly Man
R. Kent Hughes
Courage and Calling
Gordon T. Smith
The Healing Power of Essential Oils
Eric Zielinski DC, Eric Zielinski
Joyspan
Dr. Kerry Burnight Ph.D, Kerry Burnight
You Have a Calling
Karen Swallow Prior
Mystic Christianity
William Walker Atkinson
Yogi Ramacharaka, William Walker Atkinson
Large Catechism of Martin Luther
Martin Luther
