James White's tract "The Christian Message" is a start

J. I. Packer's Knowing God

C. H. Spurgeon's All of Grace

R. C. Sproul's Saved from What?

And, yes, I have indeed used all of these (am about to lead a study of Packer's book) for evangelism.

Have you ever read any of the fine, free materials available from Mount Zion Chapel?

By the way, you still haven't told me how you reconcile "Alpha", "Satisfied," and John Eldredge's writing with Reformed theology.

True godliness is a sincere feeling which loves God as Father as much as it fears and reverences Him as Lord, embraces His righteousness, and dreads offending Him worse than death~ Calvin