People have mentioned the internship thing. If you have a little bit of skill in a certain area though, you could basically email anyone in that field and say “I’m a student at <uni> and I’m thinking about doing <role> as a job and I’d love to spend 30 minutes and ask you some questions.
People in real jobs go crazy trying to help answer student questions because no one does this. I wish I did it a lot more when I was in college. You may even get a job out of it if you actually follow through on their advice and let them know with an occasional update.