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 come from the same country as me, there are two good exchanges for trading, Indodax and Tokocrypto. All local exchanges require us to complete KYC and for those who don't want KYC exchange, it means the desired exchange is not available.
Globally, Binance exchange is well known. But they also require KYC. Binance supports SegWit and Lightning. Use Binance with caution as in many cases they are not registered with the legal regulations [permits] of the country of operation.
OP said he is using coinbase and kraken which means he has no problem with KYC.
It can be said that among all the centralized exchanges , Binance is the best and most reliable despite recent incidents . Coinbase and kraken are the top 2 exchanges in the US and I think they're not too bad to use , but if the OP wants to find something better I'd still recommend Binance .
But there is a note that , even though these centralized exchanges are reputable and trustworthy , that doesn't mean they'll never collapse . So use them for what they were created for , which means CEX is only for buying, selling and exchanging . We should not misuse and abuse them such as using them to store our bitcoins or crypto assets .