Start with high-confidence buddhism general books, then narrow by subgenre or adjacent topics.
Radical Compassion
Tara Brach
Radical Acceptance
The Zen Teaching of Bodhidharma
Bodhidharma, Red Pine
The Quantum and the Lotus
Matthieu Ricard, Trinh Xuan Thuan
Buddha in Your Backpack
Franz Metcalf, Monk Song Yonk
Living Buddha, Living Christ
Thich Nhat Hanh, Elaine Pagels