There are several crypto projects that are probably good investments. I recommend you to look at the best currencies on websites with reliable information, then follow the team and development of the coins to see if it is worth investing.
Whatever research you are doing on altcoins, it won't help you much as this entire market is driven by speculation and hypes. Investing in altcoins require you to have luck which makes it quite a gamble. If you are willing to take the risk, then you can go for it. But the best is to stick to trading or to simply hold your coins.
If you choose the good altcoin to invest, you might have made a good profit. The examples are the Etheruem or Monero.