If one of the kittens is a girl, I would call her Nina. One of the three kittens I adopted had this name, however, she ate something outside and died from poisening. I would call another cat her name out of respect. Other names would be based on their personality. The black kitten with green eyes, I would call her something unique. A word in a different language that makes me think of her. The tougher and wilder cat, think of a name fit for an warrior woman or man.
The four cats my partner and I have are Khakipants (the oldest and fearless one with white and black spots), Allie (cute but a little dominant tabby), Butterball (black and white, really hairy with fat, purrs and hears singing when he eats), and Mini Meow (also known as mini or minnie who is fun, playful, loving, and white with very little black).