"How to" channels are very popular, particularly with a niche group of viewers interested in "the subject".
I have a how to channel and it's going well, great viewer interaction - (some) people like to learn.
Make the content interesting, deal with subjects others ignore, always respond to comments, and it becomes a community affair.
Also, it's enjoyable passing on information to others - we all have to learn somewhere.
Do a good job, know your subject, and you will build a fan base.
I even put up videos where I fail, and viewers like those too, it shows we are all human.
You can learn from mistakes, as well as from success.