A quick Google search seems to indicate that Pfizer's TicoVac is indeed available in the US. I would wager this is the same one that they're using in Austria. At least it's this one they offer in my home country (also European).
TBE vaccine (TicoVac) is the only one I'm aware of, but I guess the necessity would depend on whether or not ticks in your area are known to carry TBE.
No, because that's not an infectious disease like a virus or bacteria. It's an allergy your body develops to a specific carbohydrate (alpha gal) found in pretty much all mamallian meat except apes/humans. A specific chemical in the lone star tick saliva triggers it, so you just need to get bit. There's no virus or bacteria to vaccinate against.
There is a canine vaccine for lyme disease (different tick species). Human vaccine used to exist but was pulled from market, might be a new one soon though. There are unfortunately other diseases besides lyme disease though that ticks can carry, including rocket mountain spotted fever and anaplasmosis. And while lone star ticks (the meat allergy ones), don't tend to transmit lyme disease, they can transmit other diseases, unrelated to the meat allergy issues.
Great, and I asked a follow up question about a very specific one. If the reply to my question is not the answer then it's worthless. Thankfully someone else actually gave me the information I asked for instead of wasting everyone's time with useless replies.
Not the person you're replying to but you can get Alpha-gal Syndrome (causing potentially deadly allergies to red meat) from the lone star tick so I can see why it would be a natural follow up question to this discussion.