Canada

All three countries have their unique advantages and drawbacks when it comes to future scope for MBA in Information Technology.
Australia:
Has a strong IT sector with a focus on innovation and technology-based startups. Boasts of a well-developed education system with several top-ranked universities. Offers a high standard of living and a diverse, multicultural environment.
USA:
Has a highly developed IT industry with a significant number of multinational technology companies based in the country. Offers a wider range of opportunities for professionals with an MBA in IT, including the opportunity to work in the Silicon Valley. Has a strong job market and high salaries for professionals in the field.
Canada:
Has a thriving IT sector with a focus on innovation and new technologies. Offers a high standard of living and a welcoming, inclusive society. Boasts of a well-developed education system with several top-ranked universities. Ultimately, the best country for future scope in MBA in IT depends on individual needs, preferences, and career goals. Each country has its unique advantages, and it is up to the individual to determine which country is the best fit for them.

There are several Diploma courses that you can pursue after completing your B.Com in Canada. Some popular options include:
Diploma in Accounting: This programme provides students with a solid foundation in accounting principles, as well as hands-on experience with accounting software and techniques. Diploma in Business Administration: This programme is designed to provide students with a broad understanding of business concepts and practices, including finance, marketing, and management. Diploma in Supply Chain Management: This programme covers the process of acquiring goods and services, and managing them through the entire supply chain.

If your brother wants to settle down in Canada, there are several options available to him. Here are a few possibilities:
Study in Canada: Canada is a popular destination for international students, and many Canadian universities and colleges offer a wide range of academic programs. Your brother could study in Canada and obtain a degree or Diploma from a Canadian institution. This would give him a good foundation for finding a job in Canada after graduation. Work and Study Permit: Your brother could apply for a Work and Study permit, which would allow him to study and work in Canada at the same time. This would give him a chance to gain valuable work experience and make connections in Canada while he studies. Express Entry: Express Entry is a points-based system used by the Canadian government to process certain economic immigration applications. Your brother can apply for Express Entry if he has the skills and qualifications needed in Canada, and if he meets the criteria, he may be able to immigrate to Canada as a skilled worker. PNP - Provincial Nominee programme: Each Canadian province has its own PNP, which allows them to nominate individuals who wish to immigrate to Canada and who meet certain criteria to apply for permanent residence. International Experience Canada: International Experience Canada (IEC) is a programme that allows young people from certain countries to work in Canada on a working holiday visa. Your brother could apply for this programme, which would allow him to work in Canada for up to two years.