You can learn what grants programs there are and what grants are available from the US Department of Education on this website
Is there any situation where I may have to repay a grant that I receive through the FSA>
There are a few examples of this, one of them being if you received an outside scholarship or grant which reduced your reliance on federal student aid
another question related to scholarship and student aid, can't I receive both benefits at the same time?
A scholarship will affect your other student aid because all your student aid added together can't be more than your cost of attendance at your college or career school.
What is the best way to find scholarships?