It might even be fair to call Aghori “Hindu Satanists.” They worship what they hold to be the manifestation of the destructive aspects of Shiva, the demon-god, “Bhairava.” They are so scarce, that like Satanists, there is debate whether they are anything more common than simply rebellious ne’er-do-wells seeking infamy.
They’re not that scarce, just not well known. My wife knows several. And I’d opine that “satanist” is a poor simile. The destructive side of Shiva is considered a necessary if dangerous part of existence, not an extraneous evil the way Satan is.
But they do smear themselves with cremation ashes, and some do apparently eat small pieces of dead bodies.