Studying law in usa

I dream about studying im usa, am a law student, i actually just had my license for business law and i started my M1 ( first year in maso) in international business law, but that's not actually what i really want
I want to study fiscality , it's what i love to do to. E a fiscaliste one day , i hope that you help me to find a way to study there
It's expensive to study in usa as u know
I hope i get a help to make my dream come true!!