Masternodes are the best method of earning passive income from cryptocurrency in 2019. Running masternode do not require any advance or high computing power to own a masternode. With masternodes, you earn crypto coin daily which can be easily traded for Bitcoin or Ethereum.
But only few people can enjoy it because it requires minimum numbers of units which varies depending on the coin. The minimum numbers required is not really that low, most of the time it would cost thousands of dollars.