The modern descendants of cruiser aviation

What is the modern equivalent of a sea-control ship?

Many modern frigates and destroyers fill that role, using embarked helicopters for extended reconnaissance and anti-submarine reach.

Many ships now called frigates or destroyers perform air-warfare or anti-submarine cruiser functions. Their sensors and weapons make them sea-control ships regardless of the traditional label painted on the hull. Embarked helicopters extend the ship's scouting, targeting, and submarine-hunting radius beyond its own mast-mounted systems. Unlike a floatplane, a helicopter can recover to a moving ship without a water landing and crane operation.