there are many coins with the initial price of less than ten cent as might grows of the higher value within the several months to come and multiply the beginning balance to follows with request of wd or more to shifts with different plan on similar strategy with the returns,
Personally, I choose the etherium. Especially now you can buy it. While the market is on correction. Although $ 50 is not a big amount. Still it was possible to pick up some promising coin and invest in it. But then the risks increase. But maybe the wagering will be more.