Start with high-confidence tv sci fi, fantasy & horror books, then narrow by subgenre or adjacent topics.
The "supernatural" Book of Monsters, Spirits, Demons, and Ghouls
Alex Irvine, Alexander C. Irvine
Supernatural: Bobby Singer's Guide to Hunting
David Reed
Outlander Volumes 5-8
Diana Gabaldon
Stephen King's the Dark Tower Concordance
Robin Furth, Stephen King
