Gap year abroad

Hi, I’m a junior in HS and am considering taking a gap year between high school and college. I would really love to live abroad for a year in Europe, especially France but don’t know how. I don’t have the money to just vacation so I am wondering if there are any volunteer/work opportunities I could do? Or I wanted to apply to a French university/program there and just study language/culture for a year? Can I do this, and can I live on campus? Any help would be great!