I make tech videos on YouTube, Channel Name: Emerald Isle PC's, I currently have a following of 3000+ subscribers.
I usually deal in gaming PC's, components, and peripherals, but I cover everything else too. (Office equipment/furniture, Android Phones, Gaming Apparatus)
For videos, I can make a video talking about your service (an online store for instance) for $30. This would be a video dedicated to your service etc.
I can also make a video on a product, I would take the review sample of said product as payment, This video would an in-depth unboxing and review of your product.