Which country would give me the best return on investment (ROI) in case I do not get PR?

Germany typically offers the best return on investment (ROI) for studying abroad if you do not plan to obtain permanent residency (PR).

- Low tuition fees: Most public universities in Germany charge little or no tuition for international students - only a small semester fee (€150 - €400).
- Affordable living options: Costs vary by city, with some cities offering lower living expenses.
- Post-study work options: An 18-month Job Seeker Visa allows graduates to find employment in their field.
- Strong earning potential: Graduates in areas like engineering and computer science can expect starting salaries of €40,000 - €65,000/year.

Other countries like Canada, the US, and Australia offer post-study work visas, but usually have higher tuition and living costs. Your final decision should also consider your career goals and financial situation.