You might be interested in somnoplasty, it seems less invasive than traditional surgery, although I have yet to complete my research on it. It's usually done for soft palate reduction in order to remedy some forms of sleep apnea, but it can also be used for turbinate reduction. Somnoplasty uses radiofrequency to reshape soft tissues.

I've had an ENT surgeon explain some of the normal/traditional surgical methods of doing turbinate reduction, and it seems to be fairly complex; some methods preserve or reconstruct the underlying bone structure which may be needed for the turbinates to function correctly, while others just do a straight reduction and don't consider the final composition of what remains of the turbinates. I'm trying to find out how somnoplasty relates to this.