Look into Lottie. It requires the (free) Bodymovin plugin for After Effects to render your motion graphic to a JSON file that can be added to your site. Webflow recently added native support for Lottie files, so you can do cool things like trigger them with interactions and preview the animation in the Designer.
Take a moment to read over their blog post announcing the feature and (if needed) take the course on Webflow University to get yourself familiar with it.