Vegas?
There authentic Hofbräuhaus in Munich recently opened 2 US locations - Las Vegas & St. Louis.
I’ve been to the original in Munich a couple of times.
Thinking of going to the one in St. Louis (Belleville, IL) soon.
Already know they don’t take reservations, but their website looks like great, authentic & very promising!
http://www.hofbrauhausstlouis.com