i simply used Bittrex which really is not the best charts but one of the better customer service teams. I used Poloniex for a while but found that they had very slow support ticket response. I do not trade daily, but have learned when I do to take my time and never buy in a rush or sell low without an new re-entry point on a better deal like in this example. I also like this coin market site here for detailed chart data. I recommend https://coincheckup.com/ for research. It is not an exchange. I hope that helps.