How can I contact professionals to shadow/interview?

I'm a 2nd year bio student and I'm still trying to figure out what I want to pursue. I've been thinking about becoming a physician assistant or medical social worker, but I want to learn more about it before deciding. I volunteer at the hospital rn, but I don't get to interact w any professionals (just the hospitality personnel) I'm not sure how to reach out or who to ask to learn more about their experiences
#fall2024