To find your niche in photography, you must look at what in life you enjoy and how you enjoy doing it. For example, you may really like wildlife photographs but may not be into a three hour hike in misty rain up the side of a mountain to then sit rather motionless and quiet for an undetermined amount of time to get maybe a chance to shoot the elusive fox you think might be in the area. If on the other hand you enjoy interacting with people and being in a social environment, event photography / wedding receptions could be just right for you. Choosing a niche in something you are a fan of can also have added side affects.
Some of the more specialized niches in photographer are:
You’ll notice I split up Motorsports, Extreme and regular sports, and I did this for a reason. Each one has sub-sections that vary wildly. A photographer who shoots Nascar events probably doesn’t have the knowledge or the right lenses to shoot skateboard photography and probably doesn’t want to deal with the cold of snowboard photography or sand of surf photography.
[read more at lightstalking]
Source: Finding Your Perfect Photography Niche (http://www.lightstalking.com/photography-niche)