Whilst Bernie's standards are excessive in some areas, there have to be minimum spectator facilities, safety requirements and the like. Some venues would be vastly inappropriate for safety reasons, others for commercial reasons.
Of the areas that the US GP could do well in, New York and LA would be the right sort of places. Las Vegas would be a very Bernie idea, and Chicago could be an outsider.
If Floyd Bennett Field isn't possible for NY/NJ, aren't there lots of aerodromes in the NY area, specifically on Long Island? All that's needed is a logical place for a pit lane and permission to close roads - and someone to stump up the sanctioning fee.
Daytona is not a circuit where a road course could be built easily, as it would be a start from scratch operation - F1 cars on 33 degree banking is a non-starter.