the easiest way is to marry an american
the US is the best place to live period. you can find places that are expensive, and find places that are not. the reason a lot of people hate living in the US is cause they don't understand you have to be your own boss... working for someone is crappy today, not like it was 30 years ago when companies took care of their employees. so if you do come over make sure you set up your own business, that is the only way to go. gone are the days when you work for a company for years then retire with pride. today companies just get rid of you, there is no loyalty