Producer coach? Coach a producer to do bigger and better things! Assuming youre a successful producer and you are at the point where you can help coach someone to be just as successful as you.
Web design/coding kind of falls in with graphic design but you should know HTML/CSS if you're doing that. CSS especially for Soundclick.
Promotion assuming you have a nice twitter following and can help people's buzz.
Music Videos/Filmography(Something I'm going to try to get into cause there's an open market in my city for quality music videos.... $$hustlin$$.) - Seriously Music videos sounds the most appealing to me because coding is ****ing boring(tried to get good but it couldn't keep me pulled with interest like beats) Good money in QUALITY videos. If I'm not mistaken rap videos look really ****ing easy to direct.
https://www.youtube.com/watch?v=hrhjhsGqvwk
So many others... they're all the same haha. Money. Guns. booze. blunts.