@Robin Crawford I'd use a few sources and trust where they agree. Furnished Finder shows what's actually listed at 30+ nights near you and at what rates. AirDNA or similar can show occupancy, but check whether it's counting 30+ night stays. Then check demand directly: hospitals and travel nurse demand, GSA lodging rates for the county as a proxy for per diem, and big employers with rotating staff.
The test I'd run: furnished rent has to beat long-term rent by your extra costs, usually $250-400 a month for utilities and wifi plus furnishing spread over 3-4 years, at 75-80% occupancy. In a smaller market like Anaconda, the demand check matters more than the rate data, since a handful of listings can skew it.