You can buy some altcoins in a cheap value but promising. You can hold it in a long time or a year. Buy some altcoins at least $1 below like XRP, Cardano, TRON, SC, Digibyte, XLM. But you can search other coins that you think has a potential in the future.

Investing in the $ 50 cryptocurrency market is very little, but if you're lucky and have the right strategy, you can still make a lot of money with that. In my opinion you should invest in altcoins worth less than $ 1 and especially the altcoin is only worth a few satoshi, with such altcoin for $ 50 you can still buy a lot of coin and wait for it to rise so you can sell it. But remember to study carefully and choose the right time to invest because with such altcoin the risk will be very high.

i was there, my first investment was 40euros in to viberate on live coin, which is worth 200euros or so, today. its an promising coin thats for sure. If you are interested in to it you can read more on it here: https://www.viberate.io/

I will do trading only in this case veca no chance for me to make big with 50$ because 50$ is that amount of the money at which I started but now it is at zero value like .
Well here my suggestion for you to go for small priced coin investment for long term until the price get up and then sell , in this way you cange into big earnings .
Here currently my suggestion for you is that invest your money in Liza coin ( at yobit) with that you can easily make 10% per day .

In these moments when the market has taken a significant capitalization value, invest $50 sounds very little. It's just something like 0.004 btc. To be honest it would be difficult to find an exchange where you can deposit that amount of BTC without losing everything in fees, for which I would encourage you to try to increase your initial capital to at least $1,000 to have better chances of profits that are really worth the effort.

Really I think it's too too small amount for investing, don't look at me like on newbie, but a little patience, participating in bounty campaigns and you will understand which tokens are more perspective for you. Of course you wouldn't invest your money in one ICO, it's like 50/50, to save your money you must diversify it.

You have to keep in mind that $50 right now is worth a lot more in the crypto world than what it was a month and a half ago. If you manage to invest in mooning coins before they moon, there is no reason at all to make significant amounts of money.

The money is very small. To exchange it the fee will take almost half of the money. I will go to coinmarketcap and go to trending and get  the most gainers and the most losers. I will buy the highest of the most losers because the next move will be recovering and the price will go up and my profit will come.

I recommend 50$ to invest in promising ICO or buy undervalued altcoin. And become a long-term investor.

If I only had $50 I would take a shot with it, maybe invest in a coin that goes for $.01 or less maybe a newer coin that is young and just HODL it.