Sure. First is Matfer's "couteau filet de sole," A flexible blade, wider:
Second would be Wusthof's "Grand Prix II Flexible Filet de Sole." Flexible filet blade, with a more dramatic sweep and narrower blade. It is also flexible (v. "semi-flexible" or "rigid":
I know Wusthof makes an 8" model, 4518-7/20, which looks good.
It isn't cheap, and I'm wondering if anyone has been happy with lower cost knives for filleting large flat fish, salmon, etc.