Start with high-confidence the afterlife books, then narrow by subgenre or adjacent topics.
Evidence of the Afterlife
Jeffrey Long, Paul Perry
Unfinished Business
James Van Praagh
Life After Life
Raymond Moody, Raymond A. Moody Jr.
The Tibetan Book of Living and Dying
Patrick Gaffney, Andrew Harvey
The Tibetan Book of the Dead
Dalai Lama, Graham Coleman - editor
Embraced by the Light
Betty J. Eadie
Hello From Heaven
Bill Guggenheim, Judy Guggenheim
Many Lives, Many Masters
Brian L. Weiss
Death and Salvation in Ancient Egypt
Jan Assmann
The Egyptian Book of the Dead
E. A. Wallis Budge
Padmasambhava, Lama Kazi Dawa Samdup
Dr. Raymond Faulkner, Ogden Goelet
Journey of Souls
Michael Newton
Destiny of Souls
The Afterlife of Billy Fingers
Annie Kagan, Dr. Raymond Moody MD PhD
On Life After Death, Revised
Elizabeth Kubler-Ross, Caroline Myss
The Tibetan Book of the Dead for Beginners
Lama Lhanang Rinpoche, Mordy Levine
We Never Die
Matt Fraser
EA Wallis Budge