Radiomaster Boxer is probably the goto one for FPV quadcopters. If you want to fly LoS and autonomous missions then Radiomaster TX16S (large touchscreen, community support, all the LUA tememetry widgets you could ever want). For the link, it's either ELRS for manual flying or mLRS for Mavlink telemetry over LoRa.
I would recommend one of the radios that run OpenTX or EdgeTX (fork of OpenTX firmware: https://www.open-tx.org. These radios support a wide variaty of RF modules and have good support for simulators. No need to get a too expensive one.
what controller would you recommend?