If this team keeps playing this well, I’d probably opt for a minor move involving Hierter + a second for a backup center to even the roster out a bit. Richards, Valanciunas, and Collins, as previously discussed, would all be interesting options with different pros and cons. My preference would be Valanciunas.
Fox/Carter/McLaughlin
Monk/Ellis/Colby
DeRozan/Crowder
Murray/Lyles/Isaac/McDermott
Sabonis/Valanciunas/Len
Main rotation is starters + Keon, Devin, Lyles and Valanciunas.
You’re still short a wing, but having Keegan/Ellis/Carter and their versatility on defense could mask that deficiency enough short term to compete for a Playoff spot.