Can anyone recommend narrow fit ballet pumps?

[FlukeSkyeRunner]

Everywhere seems to do wide fitting shoes, but it's harder to find narrow fit - where can I get narrow ballet pumps?

Dune shoes often come up quite narrow.
Next do some which are elasticated so they stay on.
Higher end, French Sole are supposed to be narrow

Next. I have the narrowest feet known to mankind (size 3/4) and the only place I can find ballet pumps that stay on my feet is Next.

I can confirm that French Sole are vey narrow, India and Simple especially. Henrietta less so.

Thanks, I'll try Next first as there's one nearby x