what do u think about 2 or 3 dwarfs in a 125g tank?
In a tank that size, with a good amount of rock, you would probably be fine but once again it does matter which ones your choose. Some are more aggressive than others.
Since the tank is large, 125gal, what would also work is a pygmy angel and a larger angel, like a Koran or Emperer. Usually there aren't any problem, or less problems, mixing the larger angels and pygmy angels together.