RB for QB? miles sanders for cam?

1/2ppr 2rb 2wr 1 flex 4pt qb td pass, 14 team league

I have Clyde Edwards helaire, Aaron Jones, Miles Sanders, Montgomery, J Robinson and J Kelly as RB and am possibly looking to trade 1 for Cam newton or kyler Murray.

My current qb is Big Ben, waiver options are minshew, cousins, rivers, and trubisky. in this league most teams have 2 qbs and i went the streaming route. now looking at my team although ben has done well the past two games i am looking to upgrade the position with a player off my bench.

thoughts on who is a good trade pairing? the opponent also has DJ Chark, Landry and George Kittle as possible interests. I have cooper, green, AJ brown and sutton as WR and Logan Thomas as TE