Check your local Lidl, they had some listed in their Middle of Lidl a couple of weeks ago; I bought a couple of cans recently.
Labelled as Parkside this time, under their motorcycle sprays range, though they also do one under Crivit branding in their cycling series.
Double check the labelling though as they do several different varieties of lubricants each time they have an offer, and they vary between promotions.
I certainly recommend something called Sprayon 708, I have a small amount left in the bottom of an aerosol tin, but not sure where to buy it these days
I was about to recommend Nutek dry lube; I thought the first batch I bought from a local discount centre was PTFE based, but I’ve just checked my replacement stock from when they closed, and its Soy oil based eco friendly.
Struggling to find a COSHH for it, but This is a start.
Bill