There are several ways to potentially get scholarships for studying in Portugal as an international student. Some options include:

1. University scholarships: Many universities in Portugal offer scholarships specifically for international students. These scholarships may be based on academic merit, financial need, or other criteria. Be sure to check the websites of the universities you are interested in to see if they offer any scholarships for international students.
2. Government scholarships: Portuguese government provides scholarships to international students through the "Programa Santander Universidades" which is aimed to support international students with their academic and personal development.
3. External scholarships: There are many organizations, foundations, and charities that offer scholarships for international students in Portugal. Some examples are: Calouste Gulbenkian Foundation, Luso-American Development Foundation, etc.
4. Financial Aid: You can also check with the universities if they have any financial aid options available.
5. Research scholarships: Portugal has a strong research culture, you can also look for scholarships that are awarded to students who are interested in research and are willing to work with a professor on a research project.

It's important to note that scholarships can be competitive and may require a separate application process. It is important to start researching and applying early, be aware of the application deadlines, and tailor your application to meet the specific requirements of the scholarship.