Bitcoin is a good coin and most people are going to tell you to invest hundred percent in it. Ethereum, on the other hand, is a good coin and you can invest in it and make good profit since the price moves closely with Bitcoin. There are so many altcoins that are moving closely with Bitcoin in price ,they go up when Bitcoin goes up and they also go down when Bitcoin goes down. Cardano seems good too, I have seen a lot of people talk about it lately. I don’t know much about the ravecoin, it might be good as well. I am only sure about the Ethereum and Bitcoin, and Cardano, as for the rest I know nothing about them.