You certainly have many options when it comes to getting individual insurance. First, it will matter as to which address you choose at your primary residence (for two reasons). First, your residency will determine the plans that are available to you. Secondly, you should shop around using all three of your residencies to see which would be the most cost-effective (certain areas have higher insurance costs). I have a small website (link is below) showing some good online retailers that could sell you insurance. I'm sure there's also agents in your area that you could call to request quotes. Let me know if you have any other specific questions.

Lastly, regardless of which location you use as your residency, if you're very healthy, I'd recommend looking for an HSA-qualified plan (it'll most likely be your best bet).