Business proposal through email

I'm trying to make a business proposal to streaming websites like Netflix or Hulu as well as the international streaming websites in all of the world. I have a social media account and I'd like to suggest that I will make a video to advertise their content so they can attract more audiences to their websites. It does not have to be long but it must capture the attention as soon as they read the email take action. Basically, the goal is to make a partnership with them. For more details, we can discuss.