3. Duke Johnson
If the LA Chargers strictly want to pick up a receiving running back then Duke Johnson is the guy for the team to sign. Johnson has been one of the best pass-catching running backs in the league and would give Justin Herbert yet another weapon to throw to.
The only potential drawback of this is that it does not really add anything new that Austin Ekeler does not already bring to the table. Johnson is a worse version of Ekeler but profiles very similarly. In fact, Ekeler is better as a traditional runner.
However, Johnson is still worth mentioning because of the possibility of the team running two running backs. This would give the Chargers more versatility to play Johnson next to Jackson or Kelley and could even allow the team to put Johnson in the slot when needed.
It is also a good contingency plan if Austin Ekeler gets hurt again. Johnson, as mentioned, is not the player that Ekeler is but he would give the Chargers a very similar skillset at the position and not much would have to change.
Johnson’s best days might be behind him but the Chargers could absolutely get a 45-catch, 450-yard season with around 300 rushing yards. That is not too shabby for someone who is going to cost next to nothing.