I'd still consider Tobias Harris, and inquire as to what his market actually is. I'd also look at Jeremy Lin, but it would have to be a great, team friendly contract for me to go down that road.
Other than that, look at young players who might go under the radar as value pick ups (like Carroll three years ago, Booker, Bazemore and Aminu last year.) Sign a guy to a "prove-it" deal and then let them prove it.
And since I'm greedy, I'd still take a good look at Ante Tomic's contract buyout. Adding Pleiss and Tomic to the group we currently have would be a successful offseason for me.