Look for ICOs. Study there projects, know the team behind it and with wide community. If you decide already which ICO you want, buy tokens. When it pumps, sell them and re invest if you want. Or buy cheap altcoins and learn to Hodl. Always give time for research and study, it will not take the risk, but it will lessen. Rather than just investing with our proper research.

I would recommend to take a risk and invest in unpopular coin or token. Take a look at PACcoin, for instance: your $50 could turn into $3200 in just a week. And there are many such stories.

I will consider XRP and IOTA as these are the two crypto most potentially in the cryptocurrency world, because they have a lot of new technologies and many partners are ready to cooperate with them in the future..

I would pay attention to young and cheap coins. They need to be studied well and after a while your $ 50 can easily turn into 500 and even $ 5000

Heavy question))
But I think I started to study all the coins and see if it can shoot in the coming years, just like that)))

i would put my money in stocks which has a working product. See there are 1400+ coins, for you to see your money make some value ignoring those artificial gains created by whales, a product is the only options. XRP, POWR, TRN, wepower etc. would be my bets when it dips.

If you have such amount to invest in, i guess you go for altcoins that aren't that expensive but has high potential for growth. You can also check on those coins whose icos recently concluded and with prices that aren't high. Choose those icos that have high potential and whose projects are really good and useful.

There are still a lot of low price but potential altcoins that I can choose to. Those altcoins with a price of below a dollar can be enough for a $50 budget. But you must have enough skills and patience in trading some low price altcoins for might take time for them to make gains. Hodl them and wait for their price to shoot up.

i will advise that you go for low priced well performing crypto on the exhange. Again, you still patronize ICOs that have good future. Research is very necessary to make sure you do not make any mistake.

Right now, I have just three coins I may consider putting that and leave it for like 3 to 5 years then come back and harvest huge returns. Those coins include EthLend, DENT and Electroneum.