Blackcoin was on BaterDex as far as I know and it's capable of being exchanged on a DEX since it supports atomic swaps.
I am however a little rusty in the knowledge so if you haven't done it yet, you can go to their discord if you haven't done it yet. There are community members active who followed the last developments more closely and probably can say more about it. Take this invite:
https://discord.gg/9dJ8QkPS: This ANN thread is not monitored closely anymore, the community communication went mostly to discord and reddit.
PPS: Cool list of true decentral coins might come in handy
