"The Last Mooring" by Tom Freeman should give you some ideas. It depicts the final mooring of the Arizona at Pearl, before the Vestal came alongside.
Note the tug in the mid-distance. Yard and district craft should have a black hull and Ocean Gray (5-O) upperworks. Corsair Armada makes a 1:700 scale model of the USS Hoga, a tug who assisted several ships, including the Nevada on Dec 7. Battlefleet Models makes several tugs and yardcraft , including YTL-17, lighter that was instrumental in fighting fires.
Iron Shipwright makes a 1:350 scale model of the Hoga.