GDAX, Bitfinex, Bitstamp, Cryptopay, Cex, are a few example but it depends on what payment method are you planning to use. Coinbase purchases are by credit cards, right? I think Bitstamp can be used to buy using a card.
realy bitstamp can purchased via credit card?? What kind of credit card are accpeted? Mastercard or visa? Is that a great exchanger i heard how about i want to cashout can i return back in my credit card or bank accounts..?