A beginner Ruby specialization you can audit for free instead of paying.
Getting Started with Rust (LFEL1002)
Database Systems
Technologies of Humanism
Fundamentals of Probability
Introduction to Programming in Java
Codecademy, Learn C: Functions and Structures
Learn HTML (web.dev)
Computational Science and Engineering I
Introduction to Robotics
Secure Hardware Design
Theory of Parallel Systems (6.895 / SMA 5509)
Ethics for Engineers: Artificial Intelligence