Your question is too general. Don't try to find a way to earn money, but rather try to find a way to solve people's issues. In fact, you will never earn money by having such an approach.
When you offer a solution, you can make a business from that.
Earning money is possible, but it isn't something you can constantly rely on.
Anyway, if you want to earn money, you don't even have to create a site. All it takes is to find a gambling site, play casino games, or even try betting.
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