I cannot find the WB selector or the White Balance eyedropper in Adobe Premiere Pro Beta

Abhinav has the current answer. And the more automated options that were in Lumetri are in the works but not ready yet for release, according to numerous staffers at NAB. Along with a lot of other controls and tools that are “in the development stage” at this time.

Hi,
You can do the same in Color Mode using eye dropper at Temperature control.