Getting rich with only 500 bucks is really difficult these days. There are good cryptos in the market that could make you a lot of profit, however, they're not so cheap as they were 1 or 2 years ago. You would need at least a few thousands dollars to see significant return on your investment.

However, there is also the possibility that new cryptos, with innovative technology and useful features, are still to be created. So you need to constantly update yourself regarding what is being developed in this space.