I was thinking maybe the 27mm but I really want an aperture ring
Fuji are now producing a v2 of the 27 *with* an aperture ring
I have the original 27 permanently glued to an X-T20 that live in my bag and go with me wherever I go.
You may notice that the largest part of the images I've uploaded here are made with that combo.
I do have bigger and arguably better lenses as well as more recent Fuji bodies, but this combination wins out as a walkabout carry-everywhere kit for me.