Nonsurgical treatments including fillers can be used to alter the appearance of your nose, but the first thing I would recommend is to see a Plastic Surgeon in you region who can evaluate your anatomy and discuss with you what your goals are.
In general, it is rare that anyone wants their nose necessarily bigger or wider, even if you want the nose to look more masculine or stronger. The ideal nose is different for each person and depends on multiple factors (ethnicity, how it balances with the rest of your face on frontal view and in profile, etc). In addition, there are different aesthetic ideals for men and women, including the shape and angles of the tip and dorsum (top of the nose) and it is very difficult if not impossible to reach these anatomic goals with a natural, lasting result without surgery. Fillers are great options for very subtle changes or touchups after surgery, but I would be hesitant to offer it to a patient in your situation as the "best" choice.
