Do you mean that you are looking for someone to manage your house on Airbnb? If so, I would recommend that you find someone who is very experienced in renting to Airbnb guests, rather than a property management company.
Renting at Airbnb guests is not even remotely like renting via other methods. Whoever you choose, they must know the Airbnb standards and how Airbnb works.
I would want to see proven reviews that mention the host by name.