There are a number of ways to shoot sunsets. Here I will talk about how to shoot HDR sunsets. A tripod may be required depending on the shutter speed. All that needs to be done is bracket 3 different shots at different exposure levels and merge them in Lightroom or Photoshop. One shot will be underexposed at for example -2EV, one shot overexposed at +2EV and one at standard 0EV.