Yeah, a big part of the appeal of Power Rangers (and Super Sentai) is how damn corny everything is, but let's imagine for a second that someone wanted to make a modern Power Rangers movie. And wanted to ditch corny for more of a Godzilla vibe.
It'd look like this, and this looks badass. It's by artist Eddie Del Rio, who has done a ton of work in video games, but who also worked on the Godzilla movie. So you could say he's something of an expert at this "destroying San Francisco" thing.
The part up top is just a snippet from the full image, which you can see in its full wallpaper-ish dimensions below.