I tend to prefer to listen to several genres, (rock, pop, country, classical, jazz) at peak loudness of 80-88 dB. The softer parts being in the 70 dBs.
Peaks above 90 dB start to feel uncomfortable after a few minutes.
I'm seated about 8' from the plane of the speakers.
My room is 14'x15'. 8' ceiling. Acoustically treated.