Talk to your existing customers. They are the ones who already know, like, and trust you enough to buy what you're selling. Their input could help you create content that attracts more of the similar audience. Literally set aside 30 minutes to call them and ask why they hired your product to solve a problem and what content they'd like to see you produce.
That said, simply knowing how much video is being consumed and thus you need to be using video to grow your business, is not enough. The essential element of making video marketing work in your favor is creative content, strategy and consistency of publishing. Your videos need to be ones that get attention and engagement and you also need to approach it methodically with a performance mindset.