First question: Do you want to learn how to edit your videos or do you want to learn about video production from A to Z? Pay attention to this first when choosing a course.
If you mainly want to learn how to edit your videos, keep this in mind: Some video courses focus on one type of recording device. Here you should consider whether you want to record your videos with a video camera, smartphone or tablet. Depending on your choice of device, there are different aspects to filming, processing programs, editing techniques and other types of production. It definitely makes sense to choose a course that is tailored to your device.