Who do I throw in flex?

Trying to figure out who to put in today…

Marquise Brown vs. Arizona

Christian Kirk vs. Baltimore

Mecole Hardman vs. Oakland

Rex Burkhead vs. Miami

Vance McDonald vs. Seattle

Is this PPR?

Yes, sorry.

12 man, 1ppr league

No worries. I think I would go Kirk here. Murray seemed to look for him a lot last week with 12 targets.