I’m looking for a Chrome extension able to save with one click multiple images.
There's a Chrome extension called zzllrr Imager which should do the trick. I haven't used it for a while, so I'm not sure what it's like now, but it definitely has the functionality you're looking for.
If you save the entire web page to your hard drive it will create a folder (usually) named "/images" and that's where the images from that web page will be stored. If you're too cool to do it the old fashioned way, use Firefox. Firefox is much more suited for this job than Chrome, which as extensions for this.