Well the two general things to look for would be things which you've studied in the past and wish to review or things which you've never studied. In general, i

Well the two general things to look for would be things which you've studied in the past and wish to review or things which you've never studied. In general, it's probably a better idea to strengthen one's foundation as they serve as the prerequisites for more advanced subjects. Google's guide to technical development [0] is a good place to start. As far as just finding courses to take, you could just search the course catalogs of sites like Coursera, edx, Udacity, and Stanford's online offerings [1]. [0] https://www.google.com/about/careers/students/guide-to-technical-development.html https://www.google.com/about/careers/students/guide-to-techn... [1] https://lagunita.stanford.edu/courses https://lagunita.stanford.edu/courses