I believe that earning passive income is the main path to financial freedom. Various altcoins and their projects have established various strategies for their investors to earn passive income, but not all are as effective or easy.
What crypto projects have the best features for obtaining passive income?
Masternodes, staking (proof of stake AND the DeFi world), mining, long term investing. All of these are good passive income makers, they are not fully passive since they require you to do small tiny stuff but not really work, just configuration and adjustments which is not really more than 10 minutes if all goes well.
Masternodes like DASH can bring you insane returns per year, it is very valuable however it requires a high capital, you could go with something like stakenet to get in cheaper and make good amount of profit, or PIVX as well. Mining has always been profitable in the long run, as long as you have very cheap electricity, sure you work hard at first, but unless something breaks down then you do not work until it does. Staking is great and requires only a VPS and starting out may take an hour or two but then you are making a profit forever. Long term investment is different than these, you do not really make an income, but in the long term most big coins go up so you gain more fiat that way.