How can I open a new Finder window on every click on the Finder Icon? is there anywhere a script or a workaround, or even just a .plist file, where i can manage to open a new finder window by clicking on the finder icon in the dock?

When a Finder window is already open, a click on the Finder icon just shows me the opened window, but doesn't open a new one.

Can anyone help?
You can do this using Hyperdock.

I do this for most of my software (Finder, Terminal, Chrome, etc...). Clicking on the application icon sends the application a Command + N. 

It's non-free though.