Bought a Logitech C920s webcam, and I can recommend it. It has nice colours, works just “plug & play” under Linux, and here’s a “selfie” from a program called “Cheese”, in 960×720 pixel resolution (the camera is FullHD, but this is enough for me):

“Selfie” with Webcam
Logitech C920s

P.S.: here’s another one from this evening, with artificial (room) light. Not the ideal lighting, but you could work with this if needed:

Webcam”selfie” with artificial (room) light

As always, thanks for viewing.