Adobe Cloud Express ( formerly Adobe Spark)
Similar to Canva, this great piece of software adds the ability to create video presentations as well as static content. Choose from a vast resource of content to add to your design and use a template to get you started- there is a huge choice of free templates-an then add in your own content that you have created or downloaded from the internet. You can also collaborate your work with others or just share your creations by the ability of creating a link that can be posted anywhere you choose.
There is a guide which gives you an overview and some instructional videos that go through the process of creating some content in real time that you can review before you create your own designs.
The link to the guide is here.