i really appreciate that you ask, what people are intrested in, and what they wanna see.
There are sooooo many “how to” videos out there. I think, Alex Pfeffer, Daniel James, @ChrisSiuMusic doing so much stuff on that.
What specially for me would be very intresting is the “why”!
Why do we cut EQ everything below 20 Hz? Why does a dip at 500Hz help against muddyness? Why is a key change so important? Why does a specific key sounds heroic, sad, depressive?
Of course i know that these are informations, you learned and studied your whole life to understand and won’t like to give them in a youtube video for free, but if you find some informations you would like to share, that would be awesome.
As usual, its just an idea!
Take care and have fun,