I think you could add gaming to this list now. There are a good number of people making a lot of money doing it. You have to run it as a business, of course, which I am not willing to do at this point. But it's actually what Splinterlands is trying to accomplish. With their land implementation the idea will be that people can develop themselves into a business where they can make money on their land, through staking, via playing the game itself, asset rental and appreciation, and ultimately maybe even advertising. This, too, is just getting started, but it seems like it may be very possible.
Ragnarok also has a long-term vision of people being able to play it "professionally" as well as using their assets in other games. The metaverse isn't here yet, but I think gaming may be what figures it out first.
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Gaming and streaming is lumped into the umbrella of "content creation" but yeah.
Crypto should evolve the situation even further that's for sure.