I think that Etherium will become the most popular cryptographic currency because it is much easier to mine than bitcoin, which makes it very attractive. It is a decentralized open-source network, which serves as the basis for the DApps it supports. Because this cryptographic algorithm is based on the Ethash algorithm, you can efficiently extract ETH tokens with multiple GPUs. This cryptographic algorithm has a big advantage because each block can bring you a reward of 3 ETH tokens. Also, you can pay attention to Bitcoin Gold. I think it will be a good investment, too, because you can use your ASIC-mainer for mining other cryptocurrencies in case of a fall in the price of Bitcoin Gold.