Well Corlain Aviary by the falconers was nice, but by the time I started boxing it has been nerfed. That was probably the best spot in the whole game. I did notice a hyperspawn spot at the Tiragarde side of Anglepoint Wharf. In between the building and the ship, right where the bugged seagull is. They are those little mind flayers, so I don't know if they drop anything useful, but they spawn instantly.