We have no debt and good credit scores, do we have any options for making this work?

There are also 'mezz' lenders (typically for larger transactions) who will cover up to 90% CLTV and require you to bring the remaining equity to the deal, and additionally there is Gap Funding in the form of unsecured personal debt.The latter can potentially be the most expensive option, but allows for true 100% financing as there are no restrictions for how to use these funds, as they are unsecured, and generally obtained through personal credit, income etc (since there is no collateral for obtaining these funds).

Also, what are some other low cost amenities that I can add to my STR that will yield a higher ROI?

And the GP got cash, and low reported gain.  

Positives are proximity, low property taxes, no income taxes, no weather events, very low maintenance stucco/tile structures, “young” properties (5-20 years old) 

Low or No House IdentityPeople want to take pride in where they live.

It’s inexpensive to provide but can make a big impact.Comfortable Bedding: Investing in high-quality mattresses, pillows, and linens improves the guest experience and leads to better reviews, which can boost occupancy rates.Smart TV or Streaming Services: Offering Netflix, Hulu, or similar services is a low-cost way to enhance guest entertainment and stay competitive.Fully Stocked Kitchen: A well-equipped kitchen with basic appliances and utensils appeals to families and long-term guests, saving them money on dining out.Dedicated Workspace: If your property caters to remote workers, adding a small desk and ergonomic chair can set your listing apart.Outdoor Spaces: If your property allows, an outdoor seating area, fire pit, or hot tub can significantly increase your nightly rate and attract more bookings.Energy-Efficient Features: Guests appreciate eco-friendly options like LED lighting, smart thermostats, or solar panels, especially in eco-conscious markets.Keyless Entry: A smart lock is a relatively small investment but offers convenience and security, which many guests value.If you’re deciding on amenities to add, it’s always a good idea to research your local market.

I too have feelings and thoughts about the programs.After I get past my feelings, I have found that I consistently get paid and vacancy is low. 

Low cost + high rent/value ratio.My market of Middle TN doesn't have any livable property for that price and the 1% rule isn't very realistic. 

Quote from @Omar Samaniego: Quote from @Bonnie Low: I've used Avail in the past, but switched to Baselane last year.