I'd be weary of Cryptocurrencies. Yes, there are opportunities but if you don't understand trading and markets you can lose a lot of money. A lot of these currencies are luxury currencies as they are not crucial in anyway to ensure economies survive and thrive. If global markets crash/correct, cryptos will be the first to burn. 'John Smith' is more likely to hold onto his physical gold coins than his intangible internet coins.
There are a few coins that can be valuable and OP listed one in Etherum, but its only a matter of time before many of these coins start to die out. There are so many coins you can't even keep track, ultimately diluting stronger coins like BTC or ETH.
Regulation, its only a matter of time before governments start clamping down regulations. People are making money and governments want in. As regulations are rolled out you can expect crytpo values to fall.
Majority of these coins have no historical data, this makes it very difficult to predict market conditions.
If you are looking for these homerun trades you may as well trade options, they offer medium risk/high reward. Another alternative would be to invest in companies that are well known and proven. Always pick an industry you know something about.
EX: I am not investing in cancer pharmaceuticals because I understand very little when it comes to chemical compounds and their effect on the body. Everyone here is well aware of computer hardware (the companies to buy and not-buy) and I even see a few complaints about it being difficult to purchase Nvidia cards because of cyrpto. Supply and demand is a huge driving factor in markets. As seen here in the 2yr NVDA chart.
NVDA 2yr chart
There are many factors that move markets and my only advice would be don't invest what you aren't willing to lose. Investing is educated gambling.