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.
Any Logitech webcam should work fine. Otherwise you need to use a streamer setup like a Panasonic DSLR with filters and more sophistication.