Need Help on how to get health insurance while traveling

Problem is with ACA and ALL insurances us YOU NEED AN ADDRESS. We are selling the house and until we find another we wont have an address. They make it very difficult in this country to survive without a physical address.Thank you all for your ideas, especially Tech writer for the links and STBRetired. I will check blue cross. But what do you do for an address, unless you own a house somewhere.