I think many would like to have a physical Satanic Church, myself included, but unfortunately it is not safe for now, with Jewish oversight and the Ignorance of human society of non-Satanists. We can only organize a very locally oriented space where we are all present. And have already organized, for you just wrote your question here, and I mean Forum. Is there a need to create a physical one in this case? Hardly. It would be a conspiracy and an oppression of ourselves, in my mind, if the concept of Satanic Churches is reasonable and appropriate, it must be on a grand scale.
In fact, our Forum is a unique focus of Truth and Sacredness. Even at this level, it is already great. Here we can exchange opinions, help each other, improve each other, learn something new. It may be a digital church, but it is an «indigenous» Satanic church, where there is Power, Truth and everything necessary.
But the key point here is different: we don't need a location in the outside world to communicate with our Gods, unlike the followers of Abrahamic crap. Everyone has a direct connection to Father Satan and the Demons. Just as everyone has the ability to create their own small Temple at home and a large temple on the Astral (Astral Temple). Isn't that wonderful? In my opinion, more than wonderful.
