Best Practices for Building Presentations with Specific Images and Video Embeds Using Web Editor and API

Is there a best practice for building a presentation when I have specific images that I want to use. For example, we’re trying to build a deck of creative examples with pieces that we’ve created that would have both still images and video embeds. I ended up just building this manually, but is there a best practice when we know we have the visuals we want to include in a presentation? Would be curious about this in the normal web editor as well as via the API.