There are many different types of visas you could be eligible for. It depends on your personal circumstances.
B-Visas (for visitors taking short trips to U.S.)
H-1B visas (for people hired in specialized areas by U.S employers--such as fashion models, computer geeks) Good for six years and you can bring spouses and kids.
H-2B visas (for people hired in seasonal, nonagricultural jobs) good for up to one year.
H-3 Visas (for people getting training to work in their home country) good for up to length of training or two years.
L-1 Visa (for people who work for U.S. companies with branches outside U.S. who are being brought to U.S. by their company to be a manager, owner, executive or employee with specialized knowledge.) Good for 5-7 years