We have been self employed and paying for our own healthcare for twenty years.
I recommend finding a reputable independent agent that represents several companies.
Ours helped us immensely.
With the ACA our coverage is the best we have had in years with lower deductibles. It is still quite expensive $1300 mo but better benefits and it did go down the last three years.
Our agent said there were two companies that provide nationwide coverage.
United and Cigna. Fl Blue Cross changes across state lines.