The E-1 nonimmigrant classification allows a national of a treaty country (a country with which the United States maintains a treaty of commerce and navigation, or which the United States maintains a qualifying international agreement, or which has been deemed a qualifying country by legislation) to be admitted to the United States solely to engage in international trade on his or her own behalf. Certain employees of such a person or of a qualifying organization may also be eligible for this classification. Via: USCIS
The E-2 nonimmigrant classification allows a national of a treaty country (a country with which the United States maintains a treaty of commerce and navigation, or with which the United States maintains a qualifying international agreement, or which has been deemed a qualifying country by legislation) to be admitted to the United States when investing a substantial amount of capital in a U.S. business. Certain employees of such a person or of a qualifying organization may also be eligible for this classification. Via: USCIS
Every year people come to the United States seeking protection because they have suffered persecution or fear that they will suffer persecution due to: Race Religion Nationality Membership in a particular social group Political opinion. Via: USCIS
The EB-1 is a preference category for United States employment-based permanent residency. It is intended for a foreign nationals who either have extraordinary abilities, are outstanding professors or researchers or Certain Multinational manager or executive.
Therefore, applicants who can demonstrate their extraordinary ability in the sciences, arts, education, business, or athletics through sustained national or international acclaim are not required to have a permanent offer of employment in the US and are eligible to self-petition, however, they must meet at least 3 of the 10 criteria. Via: USCIS
You may be eligible for an employment-based, second preference (EB-2) permanent worker visa if you are a member of a profession and you have an advanced degree or its equivalent, or if you have an exceptional ability.
Via: USCIS
You may be eligible for this immigrant visa preference category if you are a skilled worker, professional, or other worker. Labor certification and a permanent, full-time job offer is required. Via: USCIS
The TN visa is a non-immigrant work visa allowing Canadian and Mexican citizens to work in the U.S. in certain professional occupations under the USMCA (formerly NAFTA). It is available for roles like engineers, scientists, accountants, and teachers. Canadians can apply at the border, while Mexicans must apply at a U.S. consulate. The visa is valid for up to three years and can be renewed indefinitely. Spouses and children (TD visa holders) cannot work.
Via: USCIS