Maybe protections removed and a raft of 2nds could get it done. Maybe some type of exotic swap (Jazz keep the 2nd best of the Jazz, Wolves, Cavs, and Lakers picks and LA gets the worst of the 4).
Sexton isn’t a real PG but LA doesn’t really need one and at least he’s not a dumbass chucker that will ruin your offense and lose you games. He also can break the paint which The Lakers could really use. He’s also a competitor and not an arrogant bum, again, something that is another clear + for them vs DLo.
I back
@Handlogten's Heros point that unless he’s seriously hurting the tank then just keeping him probably makes the most sense.