Hi @Federica918
In order to listed on the Co-Host Network, you would need to meet certain criteria which you would certainly need to have success in already hosting on the Airbnb platform. You can find out more information here: https://www.airbnb.com/host/co-hosts
Alternatively, you could try to find a local host Facebook group who may have members that are looking at adding a co-host to help them out.
David
Superhost Ambassador ~ Host Club Community Leader ~ Experienced Co-Host