Vindax, an Asian cryptocurrency exchange currently sitting on the 25th position at CMC adjusted volume ranking, announced the listing of XRP on September 12th.
According to the announcement, XRP will be traded with BTC, ETH and USDT pairs. At the time of writing (October 1st) the volume of XRP pairs is low (approximately 100,000 for each pair) compared to the volume of the most traded pair (BTC/USDT with 300 million). However, this shows that there is a lot of potential for greater volume there.
Note: Always DYOR before using any exchange. This is not an endorsement of this exchange.