Area effect on touch spells?

[Zellsantal]

I am playing a Magus Myrmidarch in a game I am in and though a few things that would be interesting but not sure how to pull it off. Is there by chance a touch spell that can do area effect damage much like what the spell shatter could do? If there is no such spell then is their a way I could make say shocking graps into an area effect spell? Why I asked is I thought of a good combo with the m79 with the shatter spell, sadly though shatter is not a touch spell so couldn't that. So I am looking for one that could maybe do about the same effect.

Also Just wondering can you make it where shatter do damage other targets such as people and not just objects? If so what would I have to do for that?