I have recently changed most of my planes over to ELRS receivers & now have multiple FrSky receivers for sale as they are surplus to my needs.
All are in A1 working condition & support SBUS & PPM and have telemetry out, most are 16 channel but there are a couple of 8 channel as well.

FrSky (and compatible) Receivers for sale
FrSky XSR 16 Ch 1 new $20.00 1 used $15.00 each
FrSky X8R 16 Ch 6 used $30.00 each SOLD
RadioMaster R161 16 Ch 2 used $15.00 each
MotiveRC R8SB 8 Ch 2 used $20.00 each SOLD