Start with high-confidence syntax books, then narrow by subgenre or adjacent topics.
Language Development
Robert E. Owens
Dynamic Syntax
Ruth Kempson, Wilfried Meyer-Viol
A Course in Minimalist Syntax
Howard Lasnik, Juan Uriagereka
Optimality Theory
Diana Archangeli, Terence Langendoen
Move! a Minimalist Theory of Construal
Norbert Hornstein
Syntactical Mechanics
Bruce A. McMenomy
Syntax
Andrew Carnie
Morphology
Jeffrey P. Punske
Thinking Syntactically
Liliane Haegeman
The Art of Syntax
Ellen Bryant Voigt