your team is not in need of a change, so i wouldn’t force anything, but you can be opportunistic and look for something that 100% will benefit you without risking your core line up.
I would think about packaging White with one of the WR’s other than Thielen/Adams, or a package with Howard/Freeman, to see if you can land a higher upside/volume-assured player. preferably an RB, but only if you have a flex spot in your league.
i say RB bc you have a pretty steep drop off from your top 2 to the rest. so on byes or if anything else happens to those top 2, a definitively comparable replacement would help your team look the same. more than with your WR’s.
maybe you could go after Bell if the owner is struggling and needs immediate results to stay in playoff contention. at WR, if you whoever owns Julio, for instance, needs RB’s badly and is not getting TD production elsewhere from his team, i’m sure you could land him using white and howard or white and maybe Hilton/Cooper/Boyd. Landry could be a good target too, and a cheaper one at that.