How about coinmarket.io? USDe seems to be doing just fine.
Sent them a PM earlier :
Hey CoinMarket,
First off congratulations on releasing beta of your new exchange - I'm personally loving the look and 'orderly' feel of it. The technologies you've listed below also show it will only get better.
We thank you for your time and consideration. I am happy to answer any questions or concerns also. Either way, good luck on your exchange - we will definitely be keeping an eye on it as it grows.