personally I like good "optical illusions" pics that you can take in your day by day, in your home or in the streets. Other than this, maybe some picture of people just going to their jobs and making things as usual, but with a nice perspective, a good capture of everyone and make sure effects are good enough (lights, shadows etc, I don't know how it works)
wait are u sure can we edit the picture, liony mentioned optical illusions and editing it would be crazy
something this simple might get you in a good spot