3 aircraft and 3 cabin layouts, from the DHC Dash 8-100 to the 72-600. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 3 Olympic Air aircraft here: the ATR 42-600, the ATR 72-600 and the DHC Dash 8-100.
The ATR 72-600, with 70 seats: 70 Economy in its main layout.
The DHC Dash 8-100, with 31" of seat pitch in Economy and seats 16.8" wide.