I would recommend a search using various words...there are a TON of discussions/opinions/suggestions. Non air favorite seem to be the Progressive 422s and don't go nuts with amount dropped. John
I put Progresive's 412 Series 11" shocks on the OL's '04 1200C. I had to booger out the holes in the belt guard to make it sit lower because the top of the belt guard was hitting the bottom of her bob-tail fender. There may or may not be contact with a factory rear fender. We've ridin' 2-up with this configuration with the preload set all the way up. She rides it solo on the softest setting with no further issues. She's about 125# and I'm 210#.
Riding behind her, I see that her pipes get close to dragging when she takes a turn aggressivly, but they've never touched down. A different rider might find the pipes hit.