I won't click any link that I'm not familiar with though it's just an article you should quote some of those important part like the 6 ways of earning tokens. With what I know here are some of ways to earn tokens.
- Join bounty campaigns (signature,article,telegram,social media, blogging and etc.)
- Airdrops
- Work and get paid with tokens
- Trade your other coins
- Faucets
THis is the real earning of tokens in cryptocurrency community.
But i will not recommend the faucet as it is really long to earn and sometimes most of them are fake and scam.
I am into bounty campaigns and airdrop.
Yes, faucets are too low but it's a good experience mostly for newbies. They can feel on how everyone started out with faucets during the early days. Airdrops, most of them are likely scams and the same goes for bounty campaigns.
But if you have chosen a good one with a decent manager you're on the good bounty. There are many other ways to earn without investing that I haven't mentioned so read carefully the whole discussion.