I like Aubiose:
http://www.aubiose.co.uk/
It's very soft and doesn't tangle much at all in LH coats - it's usually sold at farm shops. I know Basia can get it and she's near you - maybe you could ask her.
Another one is Hemcore:
http://www.hemcore.co.uk/bedding.html
I found Hemcore even less tangly than Aubiose but the pieces are a lot bigger and it isn't as soft - so I've gone back to Aubiose again for now.
It's another farm shop product - I basically got the yellow pages out and phoned round to see who had the beddings i wanted to try!
Basia sometimes uses Easibed:
http://www.easibed.co.uk/
I haven't used it so can't really comment but Basia is pretty impressed with it's absorbency and lack of tangles, I think!
I'm sure there are others - I found Carefresh and shavings really bad for LH tangles.