I have a great deal of experience with YouTube promotion. I have two channels that have each been quite successful in their own rights.
The first is yt.com/trickofdisaster. This channel focuses on self help videos and the ones on this channel have been viewed X million times. It also has the leading learn to swallow pills vd on the Internet and the leading learn binary videos.
My other channel is called yt.com/rafem. This channel focuses on promoting local musicians. The one on this channel have been viewed over 24 million times and the top video has over 5 million views.
In addition I am advanced at paid search so can help with that as well.