I know some of you like me have dabbled a little bit in crypto but I'm guessing some folks have done more than dabbling. I went with Coinbase because it was USA based and seemed safe ( or at least safer than a long list of others) but Coinbase has a limited exchange. In the grand scheme I love that they are very careful about adding new coins but it doesn't allow for much speculation since they currently roster the pretty basic stuff.

So my question. Can anyone offer advice on an exchange or exchanges that are safe/stable etc for the more speculative coins? My guess is that at some point Coinbase will offer more coins but I'd like to get in on some new ones now and then if/when Coinbase offers those coins just transfer into my coinbase account. 

THANKS in advance!

Go Bucks!