I want to get a square taper chainset for my new touring bike build. Are there any tidy reasonably priced options?

Middleburn is the only option. You can’t have it both ways – cheap and good – rarely anyway 😉

check out Spa Cycles loads of good options here.
Chainsets

Funnily enough, I reckon those Stronglight/Spa cranks are probably the best example of ‘cheap & good’ you can get!

They’re lovely.

Will take a look at the spa ones, ta.

These ones any good?

Specialite TA still do square taper. And their chainrings are excellent.

I would go for Stronglight cranks with TA chainrings.