As a Graphic Designer, I design a lot of brochures, here is a great source from Uprinting, an online printer that has all types of different sized templates for easy downloading. Scroll to the bottom of the page to see all the templates, you can download them in various formats.
Screenshots below of the different templates and info they provide:
Here is a diagram that shows the various types of brochure template folds:
Reach out with questions or for a free design estimate:
As a website designer and graphic designer, I love sharing great tips and tools that make designing easier. As part of my website design services, I train clients on how to update their websites or to do their own SEO (search engine optimization), so I post many of these tips for my clients to train them how to use Wix and other tools to keep their website up-to-date. Keeping websites current is the best way to get found and to keep people coming back to your website.
Check out all my Design & SEO tips and resources in my blog!