Bar risers+ adjustable rearsets!
There are two options I know , and one I've had experience with in the past and wouldn't again.
Saddlman makes several versions Ninja ZX-6R
Zero Gravity, yes like the windscreen maker offers two varieties: World Class Seats - Zero Gravity
I have the ZG Draguns Tail. I like it well enough. To be honest, the best saddles I've ever used were made by Sargent Saddles. But sadly, they don't make one for the Zed.
Now, I've had three different Corbin: 1) I bought for a VFR750F. I went back to OEM. 2) one came with a used CBR 900RR... I went back to OEM, then went with a Sargent, and 3) my wife bought me one for an X-mas present for my CBR1000RR and just asked the guy at the Honda shop where I bought the bike from. It went back in exchange for a Sargent's. I also had a Sargent's on a Ducati 996.
Loved all of the Sargent Saddles (obviously). What I really didn't like about the Corbin's were they all raised up where the saddle/tank interface occurred, effectively squishing the gonads. Now I know the big rig touring guys love Corbin. And they are pretty saddles. I just didn't like the ones I had, and have been unwilling to give them another try since. Again, this is just my experience.