I have a Logitech C920 and am looking to upgrade. Something suitable for streaming.
Some annoyances with the Logitech: sometimes autofocus fails and poor reproduction of blacks. Ex: Lack of detail when a black cat is on screen.
I already have a nice mic-- the webcam doesn’t need one.
You will get leagues better picture quality using a camlink/capture card and a camera with clean HDMI out. A gopro is a good budget option but a used DLSR or mirrorless camera is going to be the best. Some DSLR and mirrorless cameras support video out over usb so you don’t even need a capture card. Here’s a guide on getting it to work on Linux with a camera capability list inside the guide. If you do want to go the capture card route I hear elgato’s camlink works in Linux.
