How do you think to move in the US?Getting hired by a company that will sponsor your stay is so hard to do nowadays.Or you could get an investor visa which will grant you the green card and later a citizenship if you invest 1.5m.You never said anything about your legal status.Moving here and settle is easy.What's most important is how you plan to get here.
Since Italy is part of the "Visa Waiver Program" I'll have the possibility to stay and visit for maximum 90 days.
This will be the first step in order to get an idea and have jobs interviews.
Then in order to stay more I'll need a VISA: after being hired I'll apply for an H, L, O, P or Q one so that I can actually work for an American company.
In order to have this the company will have to apply for it.
If you perform well (which I intend to do) the company can give to the worker the Green Card.
This is more or less the idea.
It will not be easy but at least in US the rules are clear and above all the same for everybody.