Interested in going into bio(medical) engineering, what are specific fields you think are good to go into?

Im in highschool and am very interested in the bio(medical) engineering route im not sure which field specifically and as everything is always changing I dont have a specific career in mind so I was wondering if I could get a list of in demand specific bio (medical) engineering routes to take so I can look into them further. I’m particularly interested in working in the medical field, or on projects with a team of people working towards one goal. Would love some advice/ help, thanks!