I think the easiest way to earn online today is with cryptocurrencies, after getting to know cryptocurrencies I can earn even though it's small, I start earning cryptocurrencies from bounties and airdrops then I use it for trading and investing in new projects, although not always profit but I always take lessons for profit.
Yes, from both bounties and airdrops we can follow it for free, meaning without the need to spend capital, but of course there are some conditions,
although it can't always make a profit but at least we can also learn crypto,
nowadays making money online can be easily done by people as long as they are really serious