Almost a no-brainer: the Nikon wide aperture DX prime at 35mm as the everyday companion with the Nikon D7200. Fulminantly cheap, very sharp. If I leave the house and have second thoughts about even taking the camera, I use this combination. Together with the peak design Tallac strap it is so comfortable I literally sometimes forget I took the gear with me. Apart from all the technical details (at least for me) that is the real killer aspect.
Unfortunately, almost every picture I take with this lense shows people. I feel uncomfortable sharing them for privacy matters. I hope you understand.