There are several steps to take:
Look for areas with high demand for Airbnb. Then use Airdna.co to see how much other hosts in the area are making. And look for similar properties in the area available for rent using Kijiji, Facebook marketplace, etc.
What Chi Ta Did:
He acquired 30 properties in 9 months using this process. He identifies as an Airbnb millionaire using the formula outlined.
In comparison to traditional real estate investing, where $100k spent to set up one property could make a couple hundred dollars of monthly income. A $100k spent on this new process could be used to set up 5 properties that could make $2k in monthly profit each.