IMO atomicDEX
https://atomicdex.io/ is a real DEX, the capabilities are distributed between user run clients, but You keep custody. I agree it does allow anyone to do their own trustless atomic swap trades on the involved cryptocurrency chains, the client or (soon their website) will allow everyone to see active orders, execute trades of any coin (compatible with atomic swaps) to anycoin... It also can be used to send and receive coins and tokens integrated, so it is a nice multi-crypto non custodial wallet.