a lot of people swear by hostingmatters.com
Well, there you have an incidence of supposed or so-called "conservative" writers/sites all hosted together, to the exclusion of others. Even other conservatives.
So, ask why they need to be so cloistered, is my point. Surely something drives, motivates that collection.
Just as, say, other hosting services are renowned for hosting alternate perspective websites.
And, I think that webhost has already been promoted here, so people are already aware of that.
I'm not so sure that is a "conservative" webhost so much as it hosts a fraternity of mutually promoting sites and authors.