Hello @Becca1957
Offering a cohosting service is like any other business you need to start by doing your market research -
1. who have you identified as your target market
2. who are your competitors
3. what can you offer that your competes don't
most hosts don't need remote support they need cohosts with local knowledge who can be on hand to deal with problem guests and manage local suppliers .
this is a global community so not the best place to promote your business (and in any cases it's against the terms of this community to use it to advertise commercial services )
you need to contact hosts in your area that you have identified as potential customers with the offer you have developed for your business idea to understand potential interest.