system
Given the following post, respond as if you're commenting on Reddit:
human
My employer has offered to pay for me to take a course to develop software skills. I’m leaning towards learning C++. Any advice as to which I should take?

I hope that the title isn’t too vague or the question isn’t too overasked (I promised I searched the sub history before posting). I’m in my first potential career job so I’ve never really had an opportunity like this. We primarily use C++, and my programming knowledge and education in general has been very informal (mostly self-taught) so refining foundational computer architecture skills would be valuable too. Do you all have any recommendations for an online course that I could really get a lot out of? Cost is relevant of course, but I’m not on a super tight budget.

Thanks!
gpt
What's the end game? What is your employer looking to gain? Does he want web app? firmware for hardware? websites? data analysis?    
The answers to these questions should give you an idea of which languages you should consider.