When Bitcoin is no stranger to the current electronic money market, finding a secure and trustworthy trading platform for Bitcoin is not easy.
I think you can buy Bitcoin on the reputable and secure Kenniex floor
On the ETH trading platform, you can refer to here: Cx.io, Bitfinex, GDAX, Kraken, Bitstamp, HitBTC, OkCoin, Livecoin, YoBit, BitBay.