With ship tiers it seems common that the higher a ship, the bigger it is, the larger the fleet radius, and the higher the flagship value.
What I would like to propose is a new class of ship referred to as a command ship. These would be smaller, and with less weapons than the battleship/dreads/cruisers. However, they should have a larger fleet radius, and a really high flagship value.
Additionally, the command ship should have a fleet control module slot that adds a fleet bonus (only when the command ship is the flagship). The bonus could be an increase to shields, armor, dps, fuel efficiency, ammo consumption, etc. Basically the module would give a specialized bonus to the fleet, perhaps even with racial specialized versions.
To make things even more interesting, the command ship should be unique, so people don’t just build one for every fleet. It would also be awesome if the destruction of the command ship could somehow debuff the fleet, but I’m not sure if there’s a good mechanic for something like that.