3 aircraft and 3 cabin layouts, from the 737-700 to the 737-800. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 3 GOL aircraft here: the Boeing 737 MAX 8, the Boeing 737-700 and the Boeing 737-800.
The Boeing 737 MAX 8, with 186 seats: 30 Premium Economy and 156 Economy in its main layout.
The Boeing 737-700, with 30" to 34" of seat pitch in Economy and seats 17" wide.