There is no way to get greencard directly from f1, unless you start a business backed by venture capitalist. If you are at MIT or Harvard or Stanford, follow that path. But, If you are talking about family sponsorship, then its another story. Your parents, or own brother or sister can sponsor you if they are citizen already. It takes years to get your greencard this way.

If you are talking about H1 sponsorship, sponsor ko business hunu jaroori chha- it can be gas station or motel with few employess. But if you are masters graduate, tyo pani aali garo parcha because of salary cap requirements of above $40,000 per annum.

Tesailae, F1 is the worst visa in US of A. Think of filing asylum or get hooked with one of the american chicks in your college and get married. graduate hune bela samma ma greencard permanent huncha ani you can marry a girl you like or you can stay with the gori.
Choice is yours. Take it easy man..life is [Disallowed String for - bad word]ed up in US