Create a channel or several for different categories.
How to videos are always on demand, video courses too, but can go in any niche you can think of. Just create a separate channels and post in the appropriate category.
You can monetize by showing ads from Adsense on your channel. Link to your blog.
Will need a large audience to be able to start showing ads in your videos.
If creating video courses, you can sell them as affiliate products or on Udemy
- a quiet room
- high speed internet
- a phone camera
- computer with video editing software
- a microphone
- text to speach service