Figure out the height you need, find something with a bottom base a few inches wider/deeper than the bottom of your speakers, and find something with an aesthetic you like. The JBL E series are great speakers, but speaker stands can get expensive and there's no reason to spend as much or more on the stands as you did on the speakers. I personally like the Sanus NF-series. The NF24B or NF30B would likely be great choices, and if you have the Cherry finish E-Series, the NF24C or NF30C would be a great match as well. Some other general features to look for are a single solid leg, or a hollow leg that can be filled with sand or gravel to add weight stability, as well as some sort of cable/wire management. More than anything, find something that matches the height and aesthetic you're looking for without having a base too small to be stable and without being too lightweight.
