Etherdelta got hacked too many times so stopped using it long ago. forkdelta is a good replacement. IDEX is even better but they require KYC now so not a true DEX anymore.
His reality is so, IDEX is now open DEX earlier because it is in hack people and their system at home. But I know there are still many markets more than IDEX that really is not DEX but want to try the atmosphere.