For any "attract" video, avoid speaking too much about your product. Instead, let your brand values and personality be your north star(s). Finally, because these videos can live on a variety of channels, keep in mind the strategies of each platform. For example, a Facebook video might have a square aspect ratio and text animations for soundless viewers.
Footage: Think back to your audience, and the platform you’ll be publishing on and then peruse the library of footage available to you. Imagine you’re watching the footage with no text and no sound, does it elicit emotion on it’s own? Do you see a story developing? In addition to finding something dynamic, consider the look and feel of the people or environment in the video. You want to make sure that it is relatable and/or aspirational for your audience.
Ideally, you’ll use all three distribution methods. You know your audience and hopefully you know how they’ll respond to your video. Focus on the distribution method that’ll give you the biggest return. If you’re in the film industry, focusing more on paid distribution might be your best bet. If you’re in the field of cancer research, earned media might be the way to go. Are you an entrepreneur that just launched your own startup? Spread word via your owned channels. It all really depends, so do a little research and see what fits your situation best.