Because of my knees and the hills (5 to 12%) on and off road, i set my 1x11 with a XC setup:
36x 9-46. As i swap the original rival crank 172.5 for force crank 165. It works well.
but as other said, on road biased, I run a 2x with 39/53 front and 11-25 or 11-34 depending of the hills…