CAUTION – WARNING –
If you decide to do this is on your own responsibility.
There are many ways, all of them are successful solutions. but if you alter them of doing them without caution Youtube can arbitrarily close your youtube and google accounts.
Those that involve relationships with others should be made taking care of being a real contributor to the community and avoid not fulfil any Terms of Service
1.- Long Tail.
Write long titles according to the suggestion of Youtube in the search box
Example
“How to make money using Upwork” is better than “How to make Money”
If you see on my channel, that video grew faster than others.
2.- Post the link in other social networks like Facebook groups, LinkedIn, Twitter or Google plus
3.- Post the link in appropriate groups of Reddit
In this case, you should have an active member of the community to not be banned
4.- Subscribe to channels with many many subscribers and be the first on commenting when videos related to yours are shown
Like: “Thanks for giving such an interesting topic that is my main interest and the main topic of my channel”
Don’t copy and paste the phrase… It can be a disaster to do that
5.- Make all the promotions in the first 24 hours.
6.- Find other most viewed videos that are related to your content and make a new video with the exact same keywords. It is probably that your video appears in the right suggestions of that video.
7.- Search in Google AdWords or google trends those phrases with most quantity of searches and less competition. Answer the questions no one answer.
9. Create playlists with awesome titles which have a series of most visited videos related to your topics and in the middle of it (2nd, 5th, 8th ) place set your videos. Then your videos are in the middle of awesome videos that had already be successful
A lot more… I think in the future I will publish that kind of content in my channel