Varejao, Smith, Al Jefferson are all probably available.
But, I think the best thing for the Cs is to sit tight and see how things go. As usual, I suspect Danny will be in the mix come the February deadline. With many of the players on short contracts, and with some of the youth we've got, I imagine Danny will be looking into trades either at the deadline or next summer.
He's basically slowly building back the stable of tradeable assets so that he can swing for the fences again (like he did with KG and RA). But patience is necessary.