Canva is an online graphic design platform that's very useful for social media designs, such as logos social media covers, banners, infographics, presentations, documents, or any kind of visual content.
It can be used for the design/production of images and videos as well.
It's user-friendly, it works by drag and drop, and it has many templates you can choose from for any kind of design.
It also shows you rulers, grids, and guides to help you align and place all the elements on the image in a geometrically correct manner
For example, it has social media cover templates for all social media. If you want a cover for your Facebook page, you can choose the right template for that, depending on your industry. Later on, you may change the text/logo, etc. of the cover and customize it the way you want.
The final step is to download your cover and publish it.
The best of all is that you can use many of the templates/functions of Canva for free! If you want to use more templates/functions, you can upgrade to the pro version, but for the average small business owner, the free version should suffice.
You can use Canva to create graphic designs that can help you promote your affiliate links.