Best Overall Coinbase and Coinbase Pro Fees: Between $ and $ depending on the dollar value of the purchase. The most widely known and used cryptocurrency exchange in the United States is Coinbase. Top Cryptocurrency PricesView Trending Charts. #. Name. Price. Market Cap. Change (24hr). Actions. 1. BTC icon. BitcoinBTC. $ 62, $ 1, B. - Plus, Robinhood has the best cryptocurrency selection of any the price an exchange is willing to buy Bitcoin and the price it is willing to sell it.