Why was this question closed as off-topic?
It was tagged
training and when you look at the definition of the tag
You may use this tag when your question revolves around for example: Where can I find materials to train for ... ? Asking which training course is best for you is off topic or not constructive at best as the answers will be equally valid and only apply to you.
you can see that my question is on-topic and wasn't asking for the "best" thing for me.