Best UK case friendly screen protector?

[ZOMBOOM]

I'm still undecided between the regular S7 and the Edge.

One thing that seems to be an issue is trying to find a decent screen protector for use with a case.

I know there are other threads but many of them recommend products that I cant get on the UK.

So I would ask, what is the best protector I can currently buy in the UK for use with a TPU case (Spigen or similar)?

Are there any glass ones that actually work, or am I better going for a 'film' type?

Thanks