WR Flex Help

I need help filling my WR and Flex position. Who would you start this week? I have:

C. Kupp
T. Pryor Sr.
Devante Parker
T. Cohen

The WR’s are tough since Parker had big pre-season hype but hasn’t played. Cohen is big on hype right now but I am not sure if it is a fluke. What are your thoughts? Thank you in advance.

Edit: half-point PPR