I love wide angle photos of spectacular sunsets, but truth is, qualifying sunsets happen very infrequently. However, this does not mean that great sunset pictures cannot be taken regularly. Simply use a telephoto lens to tightly frame the specialness of the sunset that is happening today. Warning - looking into the sun with a telephoto lens can cause eye damage very fast. Make sure the sun is blocked or set low enough to not be a risk to your eyesight.
In this sunset picture, I used the dark mountain as a solid base for the image and used the dark clouds for the top. The sun is positioned about 1/3 of the way into the frame. Then add a little saturation to make the sky pop.