Also, heading out toward Hood River would get them close to a lot of outdoor activities.Heading further north, being reasonably close to Seattle would give you lots of activities but it is hard to get close enough to Seattle and still be rural.

I wanted to get your takes on furniture preferences. 

That's where I get my furniture and appliances for under $1000 for a 3 bedroom house. 

Instead, find a local furniture store that carries some interesting things AND DELIVERS (e.g. not IKEA - you can look at vintage or secondhand furniture stores for some of the more interesting things, but check out the regular local furniture stores too).The benefit of buying from a local furniture store, as well, is that you can build relationships so when you're in a situation like I was a couple of months ago where I had to replace a bed, you can do something like this: I called up my sales rep, told her what I needed, she texted me photos of the beds she had in stock, I picked one, paid for it over the phone, arranged delivery, got it delivered and assembled.  

Have you purchased furniture from Walmart?

I wanted to see if there is a specific place to buy bedding, towels, things in that nature, or if there are any sites specifically for buying furniture that’s best for Airbnb use.

Perhaps work directly with a local furniture store that will deliver and put the furniture where you want it?

We have always gone with higher end furniture.

We have an undiscovered outdoor industry and a major hospital with traveling nurses.

Austin is a great market for co-living (rent by the room) and price points for rooms can vary depending on certain variables (furniture, how many bathrooms, utilities included, length of stay, location).