What are /r/entrylevel's favorite Products & Services?

From 3.5 billion Reddit comments

I'd look at Massive Open Online Courses (MOOCs) in areas that either interest you or you think are pertinent to the area you want to work in. Not only do some of them offer certification but it shows a commitment to lifelong learning and bettering yourself outside of formal academic education.

So far I have used https://www.futurelearn.com and been pretty impressed so far. In your case, I'm not sure if there will be many in the areas that you mention specifically but try this link https://www.mooc-list.com/ and good luck!