How to immigrate to Australia as a physics major?

If you are a teacher, you can apply for skilled immigration

Teaching is also one of the professions in short supply in Australia, but relatively speaking, the language requirements are relatively high. Including preschool teachers, middle school teachers, hearing or physically impaired teachers, and special education teachers. Teacher certification requires completion of relevant Australian undergraduate or master's teacher certification courses, and IELTS scores must meet the language requirements for teachers.