Applying templates to lion shaman Wildshape

I have a level 11 Lion Shaman druid. I like to wildshape into lion forms for obvious reasons… he’s into lions.

So for lion shamans, my level 11 guy can shape into lions like a level 13 druid. I believe that kind of maxes out with huge animals with Beast Shape III.

Is there a way I can apply different templates to this lion, like giant for instance, to maximize my wildshape capabilities?