I've had a quick look on Camskill and Black Circles. I had 18" wheels on my GTD, and I think the tyre size for the 18" wheels on my Golf was 225x40 18R with a Y speed rating (can't remember the load index!).
Both Camskill and Black Circles have Goodyear Eagle F1 Asymmetric 3's in the above size with rim protection - on Camskill, it's shown as 'FP'; flange protection. I had the previous version, the Asymmetric 2's on my GTD and they were good. I preferred them to the Conti Sport Contacts that I've got on my Polo GTI, which are quite noisy - even from new.
I think Goodyear may make 2 versions; one with and one without rim protection, so if you want the ones with rim protection, be sure to check this is what you'll be getting from wherever you buy them from.