Start with high-confidence mind & body books, then narrow by subgenre or adjacent topics.
Conscious
Annaka Harris
This Is the Door
Darcey Steinke
The Psychology of Man's Possible Evolution
P. D. Ouspensky
God, Human, Animal, Machine
Meghan O'Gieblyn, Meghan O'Gieblyn
The Natural Mind
Andrew T. Weil
Echo of the Soul
J. Philip Newell, John Philip Newell
Always More Than One
Erin Manning
Trip
Tao Lin
The Dore Lectures on Mental Science
Thomas Troward
The Edinburgh Lectures on Mental Science
A World Appears
Michael Pollan