A top of the range 16 Channel X6R receiver from FrSky! (6 normal PWM outputs and all 16 channels on the dedicated S.BUS output)
While the X6R is no bigger than most other 6 channel receivers, it has much more capability. The Smart Port supports the full range of hub-less sensors as well as the older hub analog sensors and the A2 port on the bottom allows you to connect an FBVS-01 battey voltage sensor for basic external voltage monitoring by pulling the jumper out if you prefer that to the integrated telemetry.
This is the perfect receiver for the FrSky Taranis Q X7.