If you want to get exposure prior to the clinical year, consider shadowing an oncology PA during breaks in the didactic year.
Join advanced practitioner societies that specialize in oncology to help you learn about the field, network with other PAs, and potentially complete an oncology-specific certificate program.
Lastly, sign up for an oncology rotation during your clinical year (but remember that a negative experience in a rotation doesn’t mean the specialty isn’t right for you!).