Great post! You just gave me an idea for another passive income stream. I haven’t had any experience with building backlinks in to YouTube vids, but I think that the sheer authority of YT that the internal links alone makes it easier to rank for moderately competitive keywords compared to websites, the farthest I’d go is share it in social media. The key is getting it indexed.
One of my favorite ways to give content a boost is to run ads on Facebook targeting people with interests that are relevant to the content. It’s fairly low cost since you are offering a free piece of content. By targeting people with relevant interests to your content, you drive the right people to the content and into the top of your funnel. And if your content resonates with them, they’ll share, link, and engage with the content in ways that will help Google see its value.