There are colleges that have programs but if you plan to invest in tuition, cast a broad net, taking real estate courses as well as business courses or other related curriculum to provide more career flexibility should your interest change.
I might suggest asking an agent if you can shadow them through the entire sales cycle
You actually don't need to go to college at all to become a realtor. I know it sounds weird, but its true! The only pre-requisite you need to become a realtor is to complete a realtor course and obtain your real estate license for your state. You can find hundreds of these courses online and they usually take anywhere from 3-9 months to complete.
It's rare, but some colleges offer real estate degrees, usually community colleges offering Associates Degrees, not too many schools have a focus on Bachelors Degrees in Real Estate. Whether you take a real estate course or complete an Associates or Bachelors in Real Estate, you'll most likely start in the same place, so unless you get enough financial aid to go to college, I suggest just getting into a realtor course. If you still don't believe me, look up Graham Stephan on Youtube, he talks about how he became a realtor in California and is now a millionaire with no college experience.
Although being a realtor takes little education and very few prerequisites, it is not an easy job when you begin. New Realtors struggle to make their first sale and I've even heard of new realtors not getting their first sale until about 6 months into their jobs, regardless of their education or firm. That's not to say that some firms are not better than others; once you get your real estate license and begin searching for jobs, ensure that the firms you are applying to have a good reputation and support system to guide you through your first couple of months as a realtor. Becoming a realtor has become a popular choice over the last few years, especially in California thanks to the high prices of homes earning realtors high commissions and early access to properties before the general public.
My advice is to get your real estate license and try to find a mentor or do plenty of research about being a realtor and the firms you wish to work at. Know that although it is a hard career to get started in, if you're able to make it past your first year or two, you have the potential to earn six-figures very easily. Realtors need to have connections so try to make connections with realtors and firms, connect on LinkedIn, and try to find someone to get advice from as you complete your real estate course.