Etherdelta and Forkdelta are old and famous decentralized exchanges right now. You can exchange Ethereum and ERC-20 tokens on those exchanges. The Binance DEX is a good decentralized exchange. Because Binance DEX is Binance. You all know about Binance. You can exchange BNB and BEP-2 tokens on Binance DEX. The Binanve DEX has BNB, BTC and fiat trading pairs.
Etherdelta used to be the most popular DEX that time. But is Etherdelta is still operating until now? Thought it was left behind by its developers? I remember there were people that lost money in that DEX. There were also many victims due to hacking and phishing. After that, many people including me would rather trade on reliable exchanges than DEX.