Very very very simple searching will give you an answer. I know how painfully hard it is to type in a search on Google
^^ what he said. there is an entire forum dedicated to answering this...you'll find lots of info on what seed banks work well, which don't, and which ship successfully to the US.
there are seedbanks that ship to usa and yes it is a federal crime to have that shit shipped to you. However, all they will do is intercept the seeds and send you a note saying the us customs intercepted illegal items from your package.
This is all that has happened so far. None of us can see the future to say what will happen. Things could stay the same or they could change, who knows?