WR upgrade needed

Feeling a little better after week 2, but I still think I need a true WR1 on my squad and have a little RB depth to give.

We’re half point PPR and start 3 WRs, here’s my lineup.
Amari Cooper
Marvin Jones Jr.
Cooper Kupp
Quincy Enunwa
Josh Doctson

RBs, we start 2 and then have a flex spot for RB/WR/TE.
Saquon Barkley
Jordan Howard
Dion Lewis
Tevin Coleman
T.J. Yeldon
Matt Brieda

Potential trade target for me, 1 owner has OBJ, Julio Jones, and Adam Thielen with Lynch, Jamaal Williams and Duke Johnson as his top RBs.

Any thoughts are appreciated.