Hi there, I'm Matt S and would like to help you (23 years a webmaster and presentations pro, former technical writer and last 5+ years engaged in multimedia e-learning for adults).
Please expand more about:
1. The course topic.
2. The intended audience (age mostly).
3. Any preferred colors (this might be depending also on dominant culture e.g. West or East!).
4. Where will this course be uploaded - own website, LMS, course portals (like Udemy).
5. What you need as final output - PowerPoint file, any software project (like Articulate Storyline) etc.
Yes, it's true I cannot point you to courses I have helped create (for schools in my country) yet I do have two live Udemy courses and a lot of knowledge for organizing information.
Looking forward to your reply,
Matt