As an example Spektrum WS2000 works fine. Download the emulator HERE and check THIS video on how to use it. You can also use any joystick or anything else that is seen as joystick if you use a emulator. Or make it wireless connecting a receiver to it, receiver can be powered with USB.
These are widely available in Ebay, search for “22 in 1 simulator” and look for PhoenixRC compatible dongle with suitable adapter cables to your radio. In order to use Phoenix you will need a dongle. I also point out how to install those extra models that are available. I’m by no means a Phoenix Support or know everything but here’s a small guide on how to install Phoenix Sim from scratch and update it to 6.0.
Ever since I put Phoenix Simulator downloads to RCT there’s been quite a lot questions of installation and updating.