I want to immigrate to Australia but my major is not on the 50-point immigration list. Is it okay to look for someone who is on the 50-point immigration list when I’m looking for a job?

Yes, but you need to work hard to find the job you need. After all, every company will not directly accept unavailable talents. I advise you to find a job in the mainland that is close to what you love. It’s not too late to work hard for a year or two before going back to work. Maybe you will still be famous in the mainland. I believe there is nothing you can’t do.