In my opinion, Xenomorphs are pretty much giant space insects. They have a hierarchy similar to termites and other such insects: the Queen is in charge, and lays eggs, the Warrior defends the hive, and the Drone maintains the hive and cares for the eggs.
Drones probably make eggs like in Alien: The Director's Cut, to start a hive. They might also, like bees, make eggs, while a Queen is in charge, to challenge an aging Queen. The Queen might, like a Queen Bee, destroy these eggs, after which the Drones swarm and destroy her. After that, they will make more eggs, which will start new hives.