Used to be super active but got burned by most of the old closures (Cryptsy, btc-e, Bter, etc), so where is the best place to trade nowadays? I have a Coinbase account already along with Kraken but not sure of other options that may be better. Thanks!
If you are looking for centralized exchangers then you can use Binance, Kucoin, or Bybit. These are my favorites centralized exchangers.
The reason of being favorites is they are trusted among the cex and as well as also have user friendly interfaces and as well as also good features. From the side of features I will put Binance one step ahead. I loved to cashout the P2P features on binance and also the launch pool pad. You can explore them. Coinbase are not available in my region and on the others hand I am not much familiar with the Kraken and the others you have mentioned so my suggestions will be to three of them.