Hello,
I think that the best way is to understand the user's algorithm, and that can only be done through learning marketing. Youtube's algorithm is pretty important as well, but if you have a solid base in marketing and digital/viral marketing, you shouldn't have much trouble to "crack" youtube after algorithm updates.
The best sources for me were Kotler's books (he is the grand-grandfather, grandfather and father of marketing in one person) and some online courses I found almost randomly. You should enroll to the virahack.com or search coursera.com or alison.com for relevant courses.
Here are some examples of 3D software overview video