Start with high-confidence ya spy thrillers books, then narrow by subgenre or adjacent topics.
Velvet Undercover
Teri Brown
Orphan Monster Spy
Saskia Maarleveld, Matt Killeen
The Love Interest
Cale Dietrich
The Truth of the Matter
Andrew Klavan
Mindwar
Gone Before You Knew Me
Renate Wildermuth
Coldwire
Chloe Gong
