Hi @Elina1323,
That is a question that is tough to answer because there lies the key of you getting 'hired'.
I myself have tried finding hosts and helping them through multiple online platforms like fiverr, upwork etc. but there are many people offering such services so the competition is quite big.
Also, looking from a Host's perspective - a Co-Host will always get paid and will never take any risk for that. A Co-Host is an employee. A good Host can never fully give over the tasks to a Co-Host because the Co-Host holds no responsibility for the whole business - if people book, it's good; if people don't - well, too bad. But for the Host that is crucial to have constanct bookings and the calendar full, if the Host is running it like a business. So that means the Host can never completely trust and let go of his/her duties. So the Host will still be seriously involved in the airbnb in one or the other form - at least the pricing strategy part.
So with that said, the idea that actually comes to me now is delivering value beforehand. In airbnb search find listings that may not be doing well, that you can see you can help them improve some aspects and send the Hosts already some real solutions - either a new description, some real working, practical ideas to get more bookings etc. And offer your services through such an approach.
And then see what happens.
Good Luck & Regards,
Karlis
in my listing does not automatically mean that all my as Host's duties will be