Writing about bitcoin
Cryptocurrency, in general, is a new niche and there is a scarcity of writers who genuinely know this niche. This means the market is flooded with newbie copywriters who simply rehash the content that contributes to the deterioration of quality. However, if you really know this niche and you have decent writing skills, you can actually make money.

CCN, Blockchain Aliens are among several websites that pay you for writing about bitcoin. You can also find a lot of related jobs freelance websites like Upwork and freelancer.com