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.
After that, you need to make a choice about how to construct an online presence that helps you achieve that goal. Maybe you need to set up an e-commerce site. If you’re interested in publishing content to drive awareness and subscribers, look into setting up a blog. A simple website or landing page with a lead capture form can help you start developing your brand and generating traffic. A basic analytics platform (like Google Analytics, which is free) can help you start to measure how you are tracking towards your initial goal.