Yes, I'm finding that wide angles are rare. I'm wondering about using a Samyang 12 on our bodies, but am worried that's TOO wide.
I tried some street once. I had a 21mm manual lens on the camera, and had pre-set focus and aperture and locked them in place with black electrical tape. It was during the day so I could set the F-stop to a high number (F8). ISO has to be a little higher but the shots are fairly sharp this way.
I put a remote release (the electric one) in my pocket and hung the camera on my chest like a regular tourist.
People noticed the camera but didn't give it a second look because my hand was not on it.
This strategy worked well for me and I got a few good shots.
Reviewing images later, I came to the conclusion that I should have used my 12mm F2 Samyang/Rokinon lens and cropped more. There are plenty of megapixels there.
A 21mm lens on Fuji is equal to 33mm, wide but not terribly wide if you aim correctly. Hard to do when you have the camera on a neck strap on your neck and aren't touching it with your hands.
A 12mm lens on Fuji is equal to 18mm, much easier to aim. Also much easier to get it set to a good hyperfocal distance. The range of clarity is larger with this lens.
You won't get clinical perfection optically, but you will get some really good street shots and that's what it is all about anyway.
So, if I do it again I'll be using my 12mm.