This question is quite broad and can only be answered individually.
There are 2 types of insurance in the US: policies that can be purchased on the marketplace during a special period and private insurance that is available throughout the year.
Insurance through the marketplace system has its advantages:
1. The possibility of getting a subsidy (discount), as a result your policy can be absolutely free, or very affordable.
2. Coverage for everything, even chronic illness, pregnancy, etc.
But! if you don't qualify for subsidies, this type of insurance is quite expensive to have. In that case, an insurance agent can suggest other types of insurance for you.
The upside of private insurance, outside of the marketplace- reasonable price.
The disadvantages are limited coverage (for details, consult an agent)
So, an insurance policy can either be completely free or cost around $500-$600 per person.
Find out which type is right for you at your consultation.