Europe certainly ain't what it used to be. Many are the citizens of Europe that desire a fresh start in the New World. For you, the colonial leader, this means that across the seas there is a free and endless supply of labor. All you need to do is attract 'em, bring 'em to the New World and put 'em to work. You do not need to bring an immigrant to the New World if you do not need him or her. Multiple immigrants can be found waiting on the docks in Europe and you may select the ones you want. All you need do is send a ship large enough to carry them to the New World.