For Block DX you can see the full list of tradable assets here: https://docs.blocknet.co/blockdx/listings/#listed-digital-assets

- AtomicWallet is a hybrid exchange. A majority of the pairs actually use a centralized service for the exchange. I believe it's just BTC and LTC that use atomic swaps. This also uses centralized wallets for checks which is an invitation for an exploit. I don't know the details about their order book and order matching, but I'd wager those aren't P2P/trustless.