If it were me, I would highly recommend that you tour the internet seeking training and mechanical videos for young Officials. When to move against the grain, what to look for in situational play, positioning .... You'll be light years ahead. Then seek a mentor. If that mentor has a crew ....follow them everywhere you can.
If anyone has a good listing of such resources as you mentioned, please share them. There is a dearth of information on topics such as this, from what I have seen.
The number one piece of advice I have seen given on here (and it is good advice, to be sure!!!) is to get into the rule book, especially chapter 2. The problem is, for people like me, who are highly visual learners, it is very difficult to take the rule book, and be able to conceptualize what is being said. That is is why Redding's is very impactful for me, because the scenarios place context around the definitions and rulings and it helps tremendously. I've yet to find a good resource for specifically chapter 2, that has quizzes (which are super helpful to me, it's just how I learn) and scenarios with explanations that fully explain the correct ruling/response, WITH a tie back to the definition.
There is no no single place to find good training videos, that I have found. I would love to see a training resource that has, for example, visual, slow-motion examples of the six types of DPI, for example, or the different types of holding. It's not a replacement for seeing it live and in person on the field, but it helps me get better by letting me link what I am seeing with my eyes, with what I know is a defined category, if that makes sense.
I'd love - and spend a fair amount of money on - an IOS/Android app that was nothing but hundreds and hundreds of scenarios, with clear explanations and definitions.