Who makes money in crypto now? Bounty / airdrops are no longer relevant, trading is not for everyone, ICO is no longer profitable, mining is also not profitable enough
I myself receive income from the nodes, feels good, and I recommend you to explore this niche. Good luck to all!
Buying masternode is not a bad option, if the coin project keep developing and going smoothly, you can earn many income from it.
Investing in ICO still can be profiting only if you participating in a worth project.
The problem is, there are no many worth ICOs to invest, only few are running nowadays.
You still needs more knowledge in any field you chooses to invest your money, the risk are always there but finding the right project to support will bring a huge profits and stable income if you are in a masternodes investment, there's a need of deeper knowledge about how things works and how can you accumulate while you are in the positions of receiving numbers of coins the downside are same with ico's when value falls so deep then your investment will also in red.