Here is what we (married couple, 58 yrs old) did to control our healthcare costs:
If you are healthy and don't require a lot of meds., consider a high deductable bronze plan with an HSA.
Keep your MAGI as low as possible to qualify for more premium subsidy. In our case, taxable income is $50K. We add $10K after tax money to bring our annual budget up to $60K. We then contribute $7600 to HSA every year to bring our MAGI down to $42,400. This qualifies us for subsidies of around $1000/mo. Over the last 3 years, our premium payments have varied from $26 to $287 per mo. Next year will be $97/mo. Our out of pocket medical payments, including eye care and dental have been $1500 to $2000 per year.
Also, if you are young, remember that there is an "age tax". Older people pay up to 3 times as much for insurance as young people. If the GOP had passed their plan, it would have been up to 5 times as much. You need to expect your premiums to go up as you age.
Hope this helps. It may not apply to your situation. If you are not able to keep, your income low, and require lots of medical care/meds., then you better be prepared to spend over $1000/mo for premiums.