I play in a keeper league where you keep 4 players, and simply lose your top four picks. My keepers are currently: LeVeon, Zeke, Mike Evans, and Keenan Allen.
I am debating moving a running back to get the top pick in the draft (i.e. Saquon Barkley). Because it is a draft pick, I would get to keep someone else in addition to grabbing Saquon in the draft. The additional keeper would likely be either Allen Robinson or Zac Ertz.
Starting Roster without trade: LeVeon, Zeke, Mike Evans, and Keenan Allen
Starting Roster with trade: Zeke, Saquon, Mike Evans, Keenan Allen, Allen Robinson