​How do I decide what business I should start?

I’m someone who has a ton of different hobbies. A few of them are playing music (guitar, keys, drums), running live sound/lighting for my church/other events, designing websites, designing products with CAD, and installing computer/IT systems. I’m super interested in start a business, but dont know what it should be. How should I go about deciding when my hobbies (all of which I truly love doing) are different?