There isn't a ton but there actually is a thread on them.

https://www.airlinepilotforums.com/r...-solitude.html

I have been following them a little bit. With Plattsburg going away it looks like the route map in the Northeast will be Boston-Presque Isle and Boston to Bar Harbor. It will be interesting to see if they are sustainable there in the Northeast as they continue to shrink. Alaska flying seems to be strong still.