https://bitshares.org -> check it out and leave a comment at: https://netbusinessrating.com/en/review-22320-bitshares-bts
https://crypto-bridge.org -> check it out and leave a comment at: https://netbusinessrating.com/en/review-27739-crypto-bridge
https://bisq.network -> check it out and leave a comment at: https://netbusinessrating.com/en/review-27740-bisq
And:
https://hodlhodl.com -> not really decentralized but: 'A P2P cryptocurrency exchange that doesn't hold funds' and again, if you want to leave a comment: https://netbusinessrating.com/en/review-27690-hodlhodlcom