I don't know about XRB/ETH but on Mercatox you have XRB/BTC and XRB/DOGE
https://mercatox.com/exchange/XRB/BTC
https://mercatox.com/exchange/XRB/DOGE

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I remember that before Raiblock was listed on exchange price in trading thread was around 200 satoshi!
What is going on with Raiblocks - now 9000sat!?