You can generate scripts with this prompt:

“Write me a 2000-word YouTube video script about...”

Although you can’t generate videos with GPT, you can with Pictory AI

https://www.youtube.com/watch?v=Tr32jwECkCc&feature=youtu.be&ab_channel=Pictory

You can also create videos without the use of footage or recorded voice

Here are some YouTube niches you can start with:

1. Travel
2. Gaming
3. Food and cooking
4. Fitness and health
5. Fashion and beauty