Yes to healthcare.gov, it's pretty straightforward, enter information and see lists and costs of insurance plans. If you already have a dr you like you'll want to go with an insurance provider that covers them, and make sure the hospital you would go to would be in network.
If you haven't before you'll want to really delve into the terms so you know what you're getting. There are explanations on the website.
The more expensive plans come with lower co pays and deductible and pay for more things.
Look hard at an HSA plan, they are high deductible but you can set up an HSA account and fund approximately $3500 per person per year and invest it all (I have an HSA with Lively and they partner with TD Ameritrade, they have Vanguard ETF's like VTI).
You get that $3500 write off now, the invested money grows tax free, and when you withdraw it in the future it is also tax free.