Arguments for the existence of God are usually divided into those whose premises may be known from the armchair, and those whose premises are the result of experiment and observation. The best-known armchair argument is called (following Kant’s unhelpful terminology) the “ontological argument,” while the design argument (also called the “teleological argument”) is the main representative of empirical arguments.
Adler On: God
Defined, Adler's Philosophical Dictionary (1995)
How to Think About God: A Guide for the 20th Century Pagan (1980, 1982, 1988, 1991) especially Chapter 9