Pre-law majors score the worst on the LSAT apparently. Do something interested to you. Preferably something you would be happy with, if you decide you don't want to continue with your law school plans. If it was me, and I wanted to do corporate law, I'd probably double major or major/minor in Something I like + business of some sort so I have a basic understanding of corporate concepts.
If you want to find good financial aid packages with a 3.2 GPA then you really have two choices. 1. 2nd tier private schools that want to attract decent students. 2. In-state public universities or out of state universities that have tuition exchange programs with your state.