Start with high-confidence systematic theology books, then narrow by subgenre or adjacent topics.
Classic Christianity
Thomas C. Oden
Bible Doctrine, Second Edition
Wayne A. Grudem, Alexander Grudem
Bible Doctrine Workbook
Brianna Smith, Erik Thoennes
Truth Aflame
Larry D. Hart
Four Views on Divine Providence
Dennis Jowers, Stanley N. Gundry
The Kingdom of God
Nicholas Perrin, Jonathan Lunde
Systematic Theology, Second Edition
Wayne A. Grudem, Wayne Grudem
God's Many-splendored Image
Nonna Verna Harrison
Created in God's Image
Anthony A. Hoekema
Theology for the Community of God
Stanley J. Grenz
Dignity and Destiny
John F. Kilner
Neither Poverty Nor Riches
Craig L. Blomberg
The Love of God
John C. Peckham
Chosen by God
R. C. Sproul
Christian Worldview
Philip Graham Ryken, David S. Dockery
The Emotions of God
David T. Lamb
The Sovereignty of God
Arthur W. Pink