I’ve used the media panel from legrand. It’s just big enough to fit the one connect and a slim balun but not much else. You can probably fit a Roku stick or fire stick but not an Apple TV.
[Link: legrand.us]

Also the back box from ECD. That ones a little bigger so you can get a full size Roku or Apple TV in there. I’ve squeezed a xfinity dvr in it before and it looked fine.
[Link: ecdcom.com]