Keeping family togeather is extremely important. US citizens and lawful permanent residents can bring over their fiancé(e), spouses, children, parents, and other family members through the appropriate family-based immigrant visa process.
Keep your family together.
Green Card Options
The spouse of a US citizen;
The unmarried child under 21 years of age of a US citizen; or
The parent of a US citizen (if the US citizen is 21 years of age or older).
After being admitted to the United States as a K-1 nonimmigrant and marrying the US citizen petitioner within 90 days, the foreign national spouse can then apply for lawful permanent resident status in the United States (get a Green Card).
A US citizen spouse or former spouse;
A US citizen parent;
A US citizen son or daughter;
A lawful permanent resident (LPR) spouse or former spouse; or
An LPR parent.