Work on building your brand and being consistent across all platforms. I personally like IG b/c it's more visual and you can showcase music, footage from the studio, etc. Obviously all the sound outlets like PMP, SoundClound, BandCamp, Soundclick as well.
Another thing I found that helps to grow a following is to work with artists and release projects. I used to work with any upcoming rapper or sing I could find and release free albums. After a couple project they started to get pick up on big blogs, reposted, etc. and my following grew which lead to more placements, beat sales, and opportunities.
You have to basically build your own movement and help other people in the process, then before you know it people will be coming to you instead of you seeking them out.