Start with high-confidence eschatology (end times) books, then narrow by subgenre or adjacent topics.
Evidence of the Afterlife
Jeffrey Long, Paul Perry
Is This the End? Bible Study Guide
Dr. David Jeremiah, David Jeremiah
Messianic Ideas and Movements in Sunni Islam
Yohanan Friedmann
The Resurrection and the Afterlife
Ali Unal, M. Fethullah Gülen
Revelation 911
Paul Begley, Troy Anderson
Judgement Day
Omar Suleiman
