@Sarah4912 it's against the terms of this community to use it to try and promote commercial services such as cohosting.
In general hosts are looking for cohosts with extensive experience of being a host themselves who understand how the various platforms work, how to deal with problem guest, how to manage cleaners and tradespeople and how to market their listings.
Just as you wouldn't employ a hairdresser with no experience of cutting hair or a chef with no experience of cooking. Hosts are unlikely to employ cohosts with no experience of hosting/
Why not let a room in your home to gain some experience and once you have become a superhost with lots of five star reviews you can look at setting up a co-hosting business. @Sarah4912