Best WR prospect in the upcoming draft?

Treylon Burks. You can do a lot with him and he could be a #1 or a big slot like Colston was when he first entered the NFL. He can also do Deebo things.

Burks has also primarily been available for his team. That's a plus at WR.
I'm starting to step on the Burks bandwagon. I was shocked when I heard that he needed custom 5XL gloves made for his hands (11.5" hands?!).