Complete list of Gau's rages

Since you asked specifically for Grenades, I think they're in the forest slightly south of the Waterfall in the WoB. It requires an airship to get there.
I'm sure someone made a comprehensive list on 'rare' rages and where to encounter them to bring them to the Veldt. Frankly, I've always hated the practice of gathering Rages. I tried it once, made a huge comprehensive list of each one (pre-internet days). There's really only a few specific ones I aim for anymore seeing more just flood his list with useless rages.

P.S. My rage lists included weapon graphics added to Gau's basic attack, status de/buffs I could observe as well as the usual spell used.