Bitstamp, a provider with an excellent reputation, run by professionals and has the most demanded cryptocurrency pairs of the moment, that would be Bitstamp. We refer to one of the most reliable and effective web portals when it comes to trading with cryptos such as bitcoin and ethereum, which also allows you to use currencies such as the Euro and the Dollar. You can also use your Visa or Mastercard, so it is accessible to those who wish to buy and drive in Fiat currency, although it is limited to some crypts, it is certainly recommended to use it.