For me, man I don't think there is anything like an easy way to earn money with cryptocurrency. Starting from the ones that requires less stress we have PTC (paid to click) but these ones are not in any way rewarding, you will just be wasting your time clicking on ads that are not going to earn you up to $1 in a year, lol. Next we have faucets, these one are also a waste of time and they have become worse lately.. Have you tried faucets lately? They are quite annoying and the ads that popup to block the screen will make you want to smash your phone on the floor. Lol.
Next we have trading - it has a lot of risks and you're likely to lose the money you have. It will only benefit you if you become good at it; requires a study or practice. Mining is another one and not everyone can afford mining especially this time around, unless you will go for cloud mining, but like you have said, most of them are scammers. The only thing I see as easy is signature campaign, you just have to write quality posts and that's it. Nothing is easy maybe.
Yes. I've tried many methods to make money with crypto in a fast and easy way. But it turns out, that there's no definitive way that will lead you towards unfold riches. Making money with crypto takes a lot of time and hard work. It's best to get a real job (either with crypto or Fiat) in order to maintain yourself financially stable. You can put some of your active income into cryptocurrency, to increase your capital over the long term (if prices become higher by then).
Right now, cryptocurrencies are extremely risky because of their volatile prices across the market. PoS coins may offer good rewards, but the income you'll earn will largely depend on the underlying cryptocurrency's price on the market. While Signature Campaigns involve some time and effort from your part, it's among the easiest ways to make some money with crypto today. Other things like Trading, and even mining cryptocurrencies, involve a higher risk and effort than Signature Campaigns. But, with a high risk, comes a high reward.
Nonetheless, it takes dedication and time for one to be able to make a living out of crypto. There's no easy and fast way to make money in crypto, just like it is with Fiat. You can use different ways/methods to make money with crypto, in order to build your wealth over time. If you're skilled enough, you can easily make tons of money by becoming a freelancer working for crypto. Just my opinion