[stomachmonkey]

Logitech C920 series or Logitech BRIO if you wanna go 4k.

You are a bit late to the game though, stuff is sold out everywhere and I'm seeing 4-5x's MSRP on them online. You may have to hit a brick n mortar.

Even with a quality webcam I'd still recommend a good headset with built in mic.

Screen sharing is a function of the conferencing suite you are using and nothing to do with the webcam itself.

Or if you have a spare PI floating around order a camera module for $25.00 and roll your own.

Oh and, remember to mute when you are not talking.