How to sign up as a Airbnb Host Services Provider

Hello, My firm has launched a section that provides concierge finance advisory, tax, accounting and bookkeeping services to Airbnb hosts in California. I understand has a forum for Airbnb host service providers and other Airbnb service provider directories exist. I’d love to learn more about such directories | For those of you with directories and or knowledge of these directories I’d value connecting to learn more about listing as a service provider (California only). Thank you