Document camera I use (not an affiliate link, currently unavailable). I like this one because it is sturdy and swivels and moves very easily. Plus it has pretty good picture quality for a $30ish camera.
This is the document camera I use for most of my classroom demos because it makes everything bigger on the projector and helps my students catch the small steps. I like it because it’s sturdy, swivels and moves really easily, and the picture quality is surprisingly good for a $30-ish camera (even though it’s currently unavailable).