I might be getting married to a green card holder who has it since 5 years and is eligible to apply for a citizenship next june. If I get married to him now when will I be eligible to get a visa to join him in America? What sort of visa will help me be with him and when?
Once he is a Citizen, he can apply for a K-3 and/or green card for you. Each one of them takes different times, usually less than a year.