Certain courses in Australia have historically been associated with higher earning potential due to their demand in the job market and the skills they provide. Keep in mind that earning potential can vary based on factors like location, experience, and individual performance. Here are some fields of study that have the potential for high earning in Australia:

Medicine and Healthcare: Specializations like surgery, radiology, anesthesiology, and dentistry often lead to high-paying positions in the healthcare sector.

Engineering: Disciplines such as petroleum engineering, chemical engineering, and computer engineering can lead to well-paying jobs in various industries.

Information Technology: Specializations like software development, data science, machine learning, and cybersecurity are in high demand, offering competitive salaries.

Law: Becoming a lawyer or working in legal specialties like corporate law, intellectual property law, and commercial law can be financially rewarding.

Pharmacy: Pharmacists and pharmaceutical researchers are generally well-compensated due to their critical role in healthcare and drug development.

Finance and Actuarial Science: Jobs in finance, investment banking, financial analysis, and actuarial science often offer attractive compensation packages.

Architecture: Architects specializing in areas like urban design, sustainable architecture, and project management can command high salaries.

Pilot Training and Aviation: Becoming a commercial pilot, especially in aviation sectors like airlines and corporate aviation, can lead to well-paying careers.

Mining and Geology: Australia's mining industry can offer lucrative opportunities for professionals in mining engineering, geology, and related fields.

Construction Management: Experienced construction managers can earn substantial salaries, especially with larger infrastructure projects.

Management Consulting: Positions in management consulting, particularly with prestigious firms, can provide high earning potential.

Petroleum and Mining Engineering: Engineers specializing in resource extraction can often earn higher salaries due to the demand for these resources.

It's important to note that while these fields generally offer high earning potential, individual circumstances can vary. Factors such as the level of education, years of experience, location, company size, and economic conditions can all impact earning potential. Additionally, Australia's skilled migration pathways and post-study work opportunities can also influence your ability to secure well-paying employment and potentially pursue Permanent Residency.

Before making a decision about which course to pursue, it's advisable to research current job market trends, salary ranges, and employment opportunities in your chosen field. Consulting with career advisors and professionals in your intended industry can also provide valuable insights into the earning potential associated with specific courses and career paths.