Craft beer brewer would probably be the first choice. I already homebrew, and I actually think it's possible to envision a profit-making craft brewery (even as crowded as the marketplace is these days).
I'm also a musician (synthesizers / piano) with enough skills to play in cover bands in the past. But that's a very difficult market to break into, and the types of jobs that actually make good money either aren't usually the type of music I'd really want to play, and / or are a market that I'm too old to enter, and / or are well beyond my current skillset. It's a good hobby to pass the time with though.
IMO, "breaking into the market" as a musician isn't tough... the problem is that the market pays so little.
I know (and gig with) a lot of folks who play music as their primary or only source of income, and it's doable if you are never going to retire and don't mind living out of your car. Or possibly have a spouse that makes better money.
I homebrew as well, and this always floats around as something I'd like to do. Then I picture hauling 55 pound grain sacks up a catwalk and dumping them into the grain mill, for a mid-to-low margin business. Sigh.
I'm also a musician (synthesizers / piano) with enough skills to play in cover bands in the past. But that's a very difficult market to break into, and the types of jobs that actually make good money either aren't usually the type of music I'd really want to play, and / or are a market that I'm too old to enter, and / or are well beyond my current skillset. It's a good hobby to pass the time with though.