Both are good. I would like to recommend the Binance. Binance is the biggest cryptocurrency exchange in the world, created by experienced professionals in the cryptocurrency space.
Binance is known for its low trading fees(0.1%) as well as fast transaction processing, its technology is capable of processing 1.4 million orders each second, making it a world leader in potential exchange volume.
Binance provides flexibility of trading in different conversion pairs such as BNB, ETH, BTC and USDT.
Choose the best option to trade now.
Here’s an article that describes how to use Binance for trade with step by step description and pictures. Hope this helps!