What is the question of this thread? What sorts of categories do you have in mind? I believe in the holy trinity of Bach, Mozart, and Beethoven (which I mention and word that way for the benefit of Herr Doktor Merkwürdigliebe). So I am a music-loving atheist. Or is this the sort of thing you had in mind: I am an exChristian, as I was indoctrinated in that superstition in childhood. For my philosophical inclinations, I am a Humean (David Hume is basically right about nearly everything). Or do you have some other sort of category in mind?
As for followers of Rand, the ones I have met are not really atheists. They believed in Rand as God, her books as their holy writ, and with Leonard Peikoff functioning as the Pope (with, of course, some of the Randians being "protestant" who disown Peikoff and regard him as heretical, not following the "true teachings" of Christ Rand). Things like the worshipful attitude toward Rand, and the belief in the infallibility of her writings, lead me to regard them as theists. Of course, they would not describe themselves that way, but self-descriptions are not always accurate. Of course, there are exceptions to that, as, for example, I am the most modest man in the world, and you can trust that self-description.
As for satanists, if they believe in a supernatural being "satan," then they are theists as well. And if they are only pretending, then they are not really satanists, just like someone who pretends to believe in Jesus being important, but does not really, is not really a Christian.
As for followers of Rand, the ones I have met are not really atheists. They believed in Rand as God, her books as their holy writ, and with Leonard Peikoff functioning as the Pope (with, of course, some of the Randians being "protestant" who disown Peikoff and regard him as heretical, not following the "true teachings" of Christ Rand). Things like the worshipful attitude toward Rand, and the belief in the infallibility of her writings, lead me to regard them as theists. Of course, they would not describe themselves that way, but self-descriptions are not always accurate. Of course, there are exceptions to that, as, for example, I am the most modest man in the world, and you can trust that self-description.
As for satanists, if they believe in a supernatural being "satan," then they are theists as well. And if they are only pretending, then they are not really satanists, just like someone who pretends to believe in Jesus being important, but does not really, is not really a Christian.
"A wise man ... proportions his belief to the evidence."
— David Hume, An Enquiry Concerning Human Understanding, Section X, Part I.
