Social media platforms are the best way to find a band photographer. Instagram should be at the top of your list as most photographers will use that to showcase their work. Secondly, would be Pinterest. Although this social platform found its footing among crafters, it’s a wonderful way to share photos easily. Lastly, would be anything else.
Facebook can be used to find photographers associated with an event, but they will usually have their work showcased on Instagram, Pinterest or their personal website. In addition to their photos, Facebook is a good way to see what kind of concerts they cover (if they are that kind of photographer). Have they don’t a variety of concerts, or a specific type? This is where you should decide what kind of photographer you want, within the confines of a band photographer.