I'd kind of be interested in Shin-Soo Choo if we can't bring ALR back. the Indians may want to cash out if he is not going to re-sign for after next year. He's a Boras client, and MLBTR speculates he is going to get $7.9MM in arbitration.
Picking up Choo would allow you to move Harper out of #2. Choo is a pretty good base runner, and his OBP/ SLG is drool-worthy (.373 / .441 in 2012, .381 / .465 career). He had an awful year per UZR this year, but before that, he had been near average (5+/- runs). Played 155 game last year, so the injury from 2011 seems past.
It'd take prospects, most likely, to get him, but you could bring him in for 1 or 2 years, then move him out of right (or left) once we have a better option.