Hi @PhillipeWit564 this is a great question! I'm bumping up your post in the hopes to get some comments from your fellow instructors. If you've gotten any feedback yet, please be sure to share it with us here.
We have this great discussion post you can check out here with tips directly from other instructors. As well, you can check out the Marketing section of our Teaching center here, which has many tips and information on how to market and promote your course effectively.