Follow these steps to get backlinks from youtube:
1) Register a gmail account free at Gmail.com
2) Create a Youtube Channel with a name related to your website/niche blog
3) Create at least one video
4) Under the description of the video, add a link to your website.
5) You can repeat the same for 2 to 3 videos at least.
6) If you upload very well on your channel, then make it a habit to always add a link back to relevant articles on your blog to the particular video, not just the homepage so users can find it helpful and in addition to backlinks from Youtube, you also continuously gain more free traffic from youtube.
That is the best way to get a link from youtube.
Avoid going to other peoples channel and spamming them with your links.
Also, read How to get free backlinks from medium.com
Need More Free Backlinks?
Then check the full list of websites/blogs this forum got backlinks from and how you can replicate same for free - List of Websites For Free Backlinks
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