Pikes Peak?
Lime Rock?
There's a Portland permanent road course facility right across the river from the city, and it's been there for 58 years. Building a street course in Portland would be the height of insanity when street course events cost $10 million (source: Trackside has mentioned the number several times) to setup over 8 or so weeks.
Anyone that mentions New York I question if they follow industry news much at all. If NASCAR wanted to have a race there, their best bet was the proposed 3/4-mile oval on Staten Island which was blown in a fiasco of a public meeting. Since then there was a failed Formula One race after it was given 5 years' worth of postponements and a Formula E race which was a Mickey Mouse track design completely unsuitable for Formula One, let alone stock car racing, and where no one attending knew or cared who won as humorously described by Parker Kligerman.
https://nascar.nbcsports.com/2017/0...tending-a-race-is-an-out-of-focus-experience/
If NASCAR goes this direction, which I expect they will for monetary reasons and because I suspect this was put out as a feeler, it just signals to me they have given up partially on their product. I watch Indycar, I watch Long Beach, Belle Isle, Toronto. They're all big events and are important for business reasons being in large cities, but don't sit and lie to me that they're good racing events compared to other alternatives. If NASCAR actually wants to go this route, to put on a good event they need to completely change their road racing practices from a driving and officiating perspective.