i think cryptocurrency will put you in a very bad financial situation at one point or another....as the other two suggestions - Stay away
You could try Mining but it requires a hardware investment and some knowledge of the technology.
There are also websites where you can rent hardware but i would advice to avoid those because there are a lot of fraudulent ones.
That is not strategy, that's gambling, you have better luck going into casino and put red or green on roulette. Let say for example 2019, in feb
you did sell order od $5500 and price went to 13K+, you lost your money. Or 2018 you had buy limit and 15K,11K,7K and... well does not matter,
people need to learn to trade. There is no shortcut, you may be lucky few times, but luck and long term making money is 2 different
So, why may we stay away from crypto. Who are you to say something like that and what are your arguments? Thankyou in beforehand.