Please contact me first and send your Youtube videos, channels or playlists you want to rank. I need to make an evaluation about your niche and competition and after that I'll send the final quote.
If you have many videos which target multiple keywords, is very possible to get first page for many of these. I mean that you will get a market domination for your niche!
This service is related with my SEO task for websites: http://taskarmy.com/services/342
I'm SEO and backlink specialist with a large experience. I'm working in this field since a couple of years and I provide a high quality services. You have a site to promote? I'm here to help you. My expertise is: backlink campaign, seo, wordpress blogs, social marketing and mobile website design.