Best Setup to Fly Indoor

GoodMorning, nice to meet you. I’ Marco From Italy.
Please could you tell me which is the best hardware setup to fly indoor with a gopro cam onboard?
I’ve got a f450 Frame with pixhawk.
I’m able to change my motor, Esc and propeller with your information.
I want buy also the best LIDAR or sonar or ( i don’t know - teraranger one) to stabilize the drone.
Thank you in advance