The market share of Bitcoin is still high at over 63 percent, while Ethereum is slightly above 9 percent, with the two major cryptocurrencies accounting for over 70 percent! If you want to make money, you still need to buy mainstream coins. Wait until the altcoin season index reaches a high point before buying altcoins. You must firmly believe that both Ethereum and altcoins will rise, but the question is what coins to buy at what stage!