Green Card for my mother and unmarried brother

[Reema J]

I am currently green card holder and next year after June 2017 I will be eligible for USA citizenship. I have my unmarried brother age 22 and mother in India, I want to know the quickest ways to bring them here to live with me permanently. They both are B1 visa holders.

1. Applying Green card for Mother and then Mother applies green card for brother.
2. Brother come to USA and does change of status from B1 to F1.

Let me know if there are other options.

Thanks in Advance.