Insurance varies by locality. It isn't even the same throughout my state. Providers typically have multiple plan offerings, and what they cover will vary by plan.
The best way to get an answer to your question would be to make a list of what insurance options are available in the places you're hoping to live (either through the Affordable Care Act or your employer), and list them here. Chances are, someone has worked (or tried to work) with them before.
Ultimately if you get a plan that covers everything or even a percentage of things, it's less expensive in the long run. I think the only thing transition related for MTFs that may not be covered is FFS, but I'm not entirely sure.
When I looked at insurance, I first narrowed it down to what the clinic I go to for hormones accepts. Then I did some math to see how much I'd spend out of pocket annually without insurance. That helped me figure out what kind of coverage I wanted to pay for. My insurance is through DC, where trans-related coverage is required. I have not needed to use it for any procedures yet, so I can't tell you what that process looks like.