Ethereum, the largest cryptocurrency after bitcoin, is one of the best practices. It is easy to use. It is an innovative application that supports DeFi applications and Erc20 tokens. It was officially released in 2015. It has earned money to most people since it came out, but due to the high price of cryptocurrencies, transaction fees are high, and it seems unlikely to make easy money. People who earn this cryptocurrency make very good profits. People like me who are mining are holding on because they think they will make even more profit in the future. An important technology for the future is these cryptocurrencies, and in second place is ethereum.