- Law and Politics
- Economics
- Education and Psychology
- Mathematics
- Physics
- Chemical Engineering and Biotechnology
- Mechanical Engineering
- Civil Engineering and Architecture
- Agricultural Science
More free resources are available on the International Language Center of Nagoya University.
Once you are done, you can challenge yourself further by enrolling in and completing one or more of the dozens of courses by Japanese universities on literature, history, data science, or IoT on JMOOC.
Wish I was studying Japanese as well. But that will be me going greedy.