Would like recommendation on best exchange to trade on and reason why you believe the exchange is better than others?
Poloniex is one of the best exchanges to trade because the fee structure is very less when compared to Bittrex or Binance and they also has no ID verification upto limit of $2000 perday.So it is bet for small traders to trade anonymously.And almost all the coins are available in Poloniex so it is best in my opinion.
Unfortunately, I don't think you'll be able to avoid ID verification in Poloniex much longer - they will be disabling much of the exchange's functionality for legacy accounts at the end of Q11 (they announced that a couple of months ago already). Also, I've never had any problems with them personally but, as others pointed out (in this thread and too many others), their costumer support is apparently... not great. Better hope you don't need to use them.
1 - https://poloniex.com/press-releases/2017.12.27-Notice-to-legacy-account-holders/