1. BinanceDex - the name of the exchange speaks for itself. But in reality this is not a true dex.
2. EtherDelta / ForkDelta - old proven exchangers. There was never a problem with them. True Dex. Only Ethereum tokens.
3. Idex - also never have problem with this exchange. It's not true Dex. Now KYC verification nedeed.
4. Komodo AtomicDex (betha now).