If the only criteria is that it has to vaguely relate to the American dream, you could try "A long way gone" by Ishmael Beah and do a contrast essay on how different his experiences are compared to those living "The American Dream".
I think everyone should read that book anyways but w/e.
Other than that you could try "The bell jar" by Sylvia Plath. I'm pretty sure you can definitely get an essay on "The American Dream" out of that, although as a 16 year old boy you may not care about the content.