is it worth making a channel with relaxing music and sounds? like a crackling fireplace? or is it just to over saturated??
Do it, youtube used to be filled with "weird" videos lol, even nowadays I see them sometimes, like a video of a guy who just filming a falling bread on a kitchen table. Weird I know, but lot of views.
Not an expert in this area, but from what I've seen, I'd go for it. I would absolutely listen to a channel with a crackling fireplace or some other type of relaxing music/sounds. I've seen many channels with millions of views for soothing, meditation, calming, etc. music. I actually watched a live stream of kittens sleeping for longer than I care to admit.
If the world isn't oversaturated, YouTube channels aren't. I'd say it's possible. Do keyword research, see where they're not targeting/ fitting in with their content, and fill the gap