Luciferians.
Except their Lucifer is not exactly the same as the Satan of most American Protestant Christians.
Arguably sort of similar to how Muslims have a different version of Jesus, or how Protestants and Catholics have a different version of Mary.
... But American Protestant Christians are on net, very stupid, intolerant and incurious, and also highly fractious, and have a million different versions of what they all claim to be the same exact beliefs... so... close enough, I guess.
Satanists != Luciferians.