Because of this the supply is relatively low which means the ones that do exist tend to make good money, especially if you theme it toward bachelor/bachelorette parties.

If it is a pet, be aware that they could get paperwork saying it is an emotional support animal (if so tell them it needs to be from a local medical professional not a website) or say that they don't have a pet.

You may find something there.You can also go to the etsy website and search for any type of spreadsheet you would like.

I did further investigation and it is my theory that their website was purchased so that it looks like they have an online presence since the early 2010s, and the extreme lack of online information on this company makes it very suspect.

How accurate are websites like Airdna?

Anyone can go to any website of any big box retailer and see how unusual that is.

I keep monitoring the properties in the Cleveland Heights area (where we are looking to buy) on Zillow and other web sites but I am sure there are other ways of finding properties.

These include website/investor portal, CRM, in-person meeting space or online (Zoom), online scheduler like calendly.The secret is to create a "system" so you can keep the flow of PMLs coming through your pipeline. 

Quote from @Charles Evans: There are websites that estimate market rent, but they can be off quite a bit.

I have my own website that I built through Wix.