Mingle With Other Travelers
If you're traveling alone, I find Airbnb room house share to be a great place to meet people. And the host usually screens through the people that stay there already, so there's already one level of security. (Of course, always be careful with strangers as your mama would say)
See All Your Members
Look at the reviews on airbnb and see if anyone has had bad experiences before.
Go and mingle a bit, make some new friends and travel together