I understand that NSS will host web sites for internal organizations. I know they host the site for MVOR.
My grotto is using a privately owned server. One of our members administers it.
https://kcgrotto.org for anyone who is interested. It is does not get much activity.
The Carroll Cave Conservancy has its web site on Hostek. I am one of the admins on it. They provide mainly WordPress on Windows Server, though I think they can do other content systems. We pay them roughly $60 per year for hosting and DNS registration. They have really good tools, and their tech support is responsive.
https://carrollcave.orgBill Gee