It depends on your reasons for visiting the United States. There are over 80 different types of non-immigrant visas and your unique situation will determine the best visa for you. There are visas for diplomats, government officials, visitors, airline and commercial sea vessel members, entrepreneurs, students, fashion models, college graduates, unskilled workers, fiancés, business executives, managers, athletes, entertainers, government witnesses and victims of a crime.
Depending on your visa category, your spouse and unmarried children under 21 years old, may qualify for derivative visas.