I don’t know if im in the right topic, but im a CS student and would love to contribute to Anki’s code.
I’ve read all the documentation that regarns about code style, what to do and what to avoid, etc Because I’m not a junior yet, I’d like to ask some ideas that are not difficult to code but still a good challenge and helpful to Anki users. 
Probably depends on your experience with programming in general, the specific programming language you’d need to push a PR and your knowledge about ankis source code.
You could look through the anki repo issues to check if you find something that looks good for your current skill set. Most will have a link back to this forums site; I personally recommend that you tackle any of those issues (especially if @dae posted them), as those have the biggest chance of being accepted if you push a PR.
Thank you for your interest in contributing to Anki!