This adjustable and rotating riser works better than the one included by the manufacturer with a display I purchased some time ago. I'm currently using this AmazonBasics riser with a 24" display, and it works great. Height adjustment is easy, it's easily rotated into portrait orientation, and it's stable, with one small exception: It seems to me it could use a little more weight in the base when the display is in portrait mode and raised up a bit high. But that's a small quibble, since it's not often the display is going to be positioned like that.
The cable slot is a nice touch for keeping things organized when raising and lowering and rotating the display.