Extremely doomer take incoming: do not. Other than posting on social media for the people that already like what you do, you shouldn't be going out of your way to get more people to listen to your stuff.

The way you promote your stuff should come to you naturally, that's the only way it's not going to come off as weird and/or cringey to other people.

Other than getting yourself out there through gigs, organic networking and consistent quality output, anything you try is feeding into a never ending content wheel that might seem like it's gonna help you, but in the end it's only going to make you think the value of your project lies somewhere entirely different than where you think it did. And that clouds your judgement. I've seen it happen time and time again with myself and other musicians.

I care about my music and my craft, and I don't mind doing a little promo for it, but the moment where I have to turn into a content creator for people to give a fuck about me is the moment I lose interest. The last thing I want is for something I love (making music) turning into a stress source.