To be eligible for an employment-based, first-preference visa you must be a noncitizen of extraordinary ability, an outstanding professor or researcher, or a certain multinational executive or manager.

To be eligible for an employment-based, second preference visa you must be a  member of the professions holding an advanced degree or its equivalent, or a person who has exceptional ability.

The Diversity Visa Program (DV Program) is one of the multiple ways for non-citizens to become U.S. permanent residents. The program is a free lottery that people from countries around the world can enter, for a chance to apply for green cards and live and work legally in the United States.

The O-1 nonimmigrant visa is for the individual who possesses extraordinary ability in the sciences, arts, education, business, or athletics, or who has a demonstrated record of extraordinary achievement in the motion picture or television industry and has been recognized nationally or internationally for those achievements.

A family visa is a document issued for family reunification purposes in a foreign country. Usually, to qualify for a family visa, you need to have a family member, who is settled in a foreign country and you want to join them.