Well, I suppose the title itself says what I'm thinkinh of.

Instead of typing "showguildABC"and "showguildABCD", which of course are alled to your guild, you just could type "showallies" or "showally".
It should tell you all the players online with a tag which is allied to your guild, and it may be should show what ally they do belong to, if that's possible. Actually, everything's possible, so..