Command ship
Pictured is the Courageous, part of Battle Group Serroco.
Capital ships utilized to direct vast fleets during combat were known as command ships or command cruisers. These served as flagships.
Attributes
Typically very sizeable warships, these vessels possessed the ability to command numerous smaller warships, along with thousands of even tinier vessels. Conventionally, command ships were designed to be the largest, most heavily armed, and most fortified warships within a fleet, symbolizing the affluence and resources accessible to a particular civilization.
Historical Context

One specific type of command ship was the command cruiser. The Maelstrom, the flagship of Galactic Republic warships under the command of Jedi General Darrus Jeht during the Clone Wars, was designated as such.
Additional instances of large command ships encompass the Republic command ship from the Great Sith War, the Inexpugnable-class employed in the Mandalorian Wars, the Mandator II-class utilized during the Clone Wars, the Executor-class and Eclipse-class from the Galactic Civil War, as well as the Viscount-class and the Kor Chokk deployed in the Yuuzhan Vong War.
Provided they were outfitted with the essential facilities, the majority of warship classes could serve as command vessels. Star Destroyers of smaller sizes, along with similar warships, were frequently utilized by high-ranking officers within the CIS, the Galactic Republic, the Galactic Empire, the New Republic, the Galactic Alliance and the New Galactic Empire as their designated command ships. Prominent examples include the Invisible Hand under Supreme Commander Grievous, the Devastator commanded by Supreme Commander Darth Vader, the Chimaera led by Grand Admiral Thrawn, the Anakin Solo under the command of Colonel Jacen Solo, and the Imperious captained by Grand Admiral Morlish Veed.