How to have a LayoutElement scaled instead of be resized ?

Hello guys,

When working with Layout and LayoutElement I'm struggling to have a GO used as a container to be scale instead of resized in order to have all this content scaled too. Moreover, would it be possible to have it scale and having an initial aspect ratio respected ?

EDIT : I tried using a AspectRatioFitter, which is a good start, but again it will change the RectTransform size and not scale.

Thanks