6 aircraft and 12 cabin layouts, from the A320 to the A321. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 6 AJet aircraft here: the Airbus A320, the Airbus A320neo, the Airbus A321, the Airbus A321neo, the Boeing 737 MAX 8 and the Boeing 737-800.
The Airbus A321, with 220 seats: 220 Economy in its main layout.