Q: I have a much wider Asian nose and not much of a nose bridge, is it possible for fillers to make my nose appear narrow?
A: If your goal is a mild-to-moderate change which is temporary (9-12 months with Restylane, ~1-2 years with Voluma) then nonsurgical rhinoplasty would be a reasonable option for you as long as you understand the limitations of nonsurgical vs. surgical rhinoplasty. Your bridge can be augmented (built up) to give it the appearance of increased narrowness and refinement from frontal and 3/4 view.
Also, while nonsurgical rhinoplasty can add volume and height, it can not remove excess tissue and can not narrow the width of the nostrils.