Kutscher’s, near Monticello has a website.
The Raleigh, also near Monticello has a website, too.
Oppenheimer’s Regis Hotel, in Fleischmanns has a website.
I’m sure there are other hotels, either frum-owned or that caterers rent out for shabbosim.
Camps often have guest suites – try calling around.
Pick up a Jewish Press, they usually have lots of ads.