Open Question: How to get health insurance as a nanny in Massachusetts?

Right now I work as a toddler teacher, but in September I might start working as a Nanny. I have no idea how to go about getting health insurance for myself without it costing a ridiculous amount! Even if I go through a nanny agency, they are not responsible for finding me insurance, since I would be employed by the family, not the agency. Everyone is required to have health insurance in