I have 2 new puppies, male n female. there mastiffs so theyll get pretty big. any good dog names?

.....Thunder & Lightning.....Bonnie & Clyde......Abbott & Costello......Hekyl & Jekyl........Brutus & ???........."Whizzo & Whizzette"......Mr. & Mrs. Smith.......Big & Bigger......Sampson & Delilah.....Goliath &???......Beauty & the Beast......