Trying to make a drone (uav) detector. What hardware to use

If you're doing signal descrimination, you'll need some horsepower and it's going to be hard to tell the difference between WiFi/BT and UAV Command and Control if there even is a difference. Lots of DSP and signal intelligence kind of work there. If you're just trying to detect signals at all, I'd just use notch filters for the desired frequency and a power meter design.

Are you making your own PCB or just trying to COTS? The Linear Technologies LTC5587 is probably a good starting point if you want to roll your own for a power sensor/meter. You'll need to roll your own front end to filter and potentially amplify the signal depending on how sensitive you want this to be but reading power levels from the chip itself is really straight forward with just active high lines for specific power levels. There are probably breakouts available for the LTC5587 if you're trying to prototype without a custom PCB. Then you could use COTS SDR bandpass and Low Noise Amplifier boards (noelec might have what you need but there are people on etsy/tindie/etc that are making those kinds of boards for HAMs/hobbiests) to make your front end.