One of the few regrets I have in life is that I never tried busking during the time of my residence in the USA.

BUT, I know where I will go to do it if I ever return again and that is the most southerly point of mainland USA in Key West, Florida. There is a marker there saying "Southernmost Point of the USA" that is a tourist magnet, but any time I was there there were never any buskers. The place is a gold mine waiting to be discovered.

There are a few drunks hanging around offering to take your picture, but I doubt they would be a problem ...

Murray