7 aircraft and 9 cabin layouts, from the 72-500 to the A330-300. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 7 Finnair aircraft here: the Airbus A319, the Airbus A320, the Airbus A321, the Airbus A330-300, the Airbus A350-900, the ATR 72-500 and the Embraer 190.
The Airbus A330-300, with 279 seats: 28 Business, 21 Premium Economy and 230 Economy in its main layout.
The Airbus A330-300 and the Airbus A350-900 have Premium Economy in at least one layout.
The Embraer 190, with 31" to 32" of seat pitch in Economy and seats 18" wide.