Start with high-confidence stewardship & giving books, then narrow by subgenre or adjacent topics.
Giving It All Away…and Getting It All Back Again
David Green, Bill High
Simple Money, Rich Life
Bob Lotich
Uncluttered Faith
Joshua Becker
Neither Poverty Nor Riches
Craig L. Blomberg
Kingdom Calling
Amy L. Sherman
A Spirituality of Fundraising
Henri J. M. Nouwen, John S. Mogabgab
Money, Possessions, and Eternity
Randy Alcorn
365 Days of Kindness
Broadstreet Publishing Group LLC
Redeeming Money
Paul David Tripp
Faith Driven Investing
Henry Kaestner, Timothy Keller