Interesting visa program. I did not know such a program existed.
Well it depends on whether your are most interested in making money, or most interested in experiencing America.
For making lots and lots of money; go to Alaska and get a job on a crab fishing boat. That pays MULTI $$$$$$$ and you don't need any previous experience, but it's really hard work.
For me, if I was going to get a seasonal job in the USA over spring and summer, then I would go to one of the stylish resorts in New England. Martha's Vineyard or something like that. There should be lots of service industry jobs there, since it is a tourist resort. You can probably make a lot extra money in tips there, since rich people holiday there. There is plenty of swimming, sailing, waterskiing and other fun when you are not working.
But Rockzmom is the expert on the American East Coast; She lives in.... Maryland, I think.