Start with high-confidence christian fantasy ya books, then narrow by subgenre or adjacent topics.
The Dragons of Chiril
Donita K. Paul
The Prophecy
Dawn Miller
Warrior
Beverly Davis, Bryan Davis
Diviner
Liberator
Merlin's Shadow
Robert Treskillard
Merlin's Nightmare
Dragonquest
Martyr's Fire
Sigmund Brouwer
Dragonfire
Dragons of the Valley
Dragons of the Watch
Dragonlight
On the Edge of the Dark Sea of Darkness
Andrew Peterson, Listening Library
Angel Eyes
Shannon Dittemore
Chaos
Ted Dekker
Sir Bentley and Holbrook Court
Chuck Black
Sir Dalton and the Shadow Heart
Sir Quinlan and the Swords of Valor
Cloak of the Light
Rise of the Fallen
