Start with high-confidence atheism books, then narrow by subgenre or adjacent topics.
There Is a God
Antony Flew, Roy Abraham Varghese
God Is Not One
Stephen Prothero
If There Is No God
Dennis Prager
Satanic Bible
Anton Szandor Lavey, Peter H. Gilmore
What God Kept for Himself
Umberto Grassi
A Plausible God
Mitchell Silver
The Age of Reason
Thomas Paine
Dialogues Concerning Natural Religion
David Hume
