If your income is much higher than 50E a month, then I would play it riskier. Ideally you want to hit better than 100x on a small investment like that. In theory, we can still get 1,000x gains in crypto if we go way down the list. Check this one out: https://coinmarketcap.com/currencies/wyvern/ I own 20,000 WYV coin.
This is a good dice roll because if WYV ever gets to 40 million market cap, I will have done about 100x on a small investment.
If you are not looking to dice roll do research and buy only those coins which will be major players 5 years from now. BTC and EOS has the best potential... also Ripple, ETH, DASH, NAV, STEEM. Maybe some other projects. Regular "play it safe" crypto can still do 100x. I think BTC should hit 1 mil each if it doesn't get derailed by mis-management. May take a while but I can see it happening.
RE: Notice to my viewers - Sold 1/2 my STEEM for Diversifying