thank you for the picture. Common question among patients with your facial structure. While rhinoplasty may be a definitive way of improving the contour of your nose via surgery, sometimes people aren't ready to jump into the "deep end of the pool". You certainly could do surgery, and additional grafting, whether it be from your ear, or rib cartilage/diced or not with temporalis fascia can all be done depending on the degree of projection wanted. Again, this is best assessed in person to get an idea of your overall facial proportions and what would look best on your particular face. another option if you are not inclined to do surgery, is to do fillers. careful fillers done by an experienced injector can give you great results via a liquid rhinoplasty. the results are relatively long lasting (around 9 months on average before you need a touch up), and can give you what you want with no downtime. now, it is not the same as a formal rhinoplasty and you are limited as far as what can be done with filler, but you can get a great, subtle result as well. best of luck!
From your photo it looks like you are of Asian descent. It is common to have a flatter nasal bridge, and many methods have been used to build up the bridge of the nose over the years. The safest and most long lasting technique is to use your own cartilage to build up this area. It is important to consult an experienced rhinoplasty surgeon to see what method will work best for you.