No there are not because this would be dangerous for all involved. Imagine meeting a supposed Satanist and it turns out they are not a legitimate Satanist or a fake. I have been involved with supposed Satanists like this before on Facebook before I knew it was a dangerous site, and one of them turned out to be a Jew heading a fake Spiritual Satanist front on Facebook. Many of the members actually tried to kill me because I am a natural anti-semite. They ultimately failed, but I thought I would warn you of the dangers of Satanic meet-ups.
The enemy actually makes fake Satanists and uses them against we legitimate Spiritual Satanists to our possible downfall. Be careful.
Hail Satan.