Remember too that what is "right wing" in Stockholm would be "left wing" in Houston.
Yeah. Of all those right-wing governments, which one would actually be right-wing by US standards? Any? Which one is the most right-wing? Still the Tories, even with Cameron? I'm unsure, need to think a bit.
I think the Spanish, British, Irish, Austrian (FPÖ), Swiss (SVP) and Eastern European right-wings would be in majority GOP. Ireland: Fianna Fáil would largely be socially-conservative (by American standards) but economically-moderate. Think old-style rust-belt machine Democrats.
Fine Gael would have a contingent of the same sort, but might tend more towards country-club Republicanism, although there is a very economically right-wing and authoritarian element lurking in the youth wing and in parts of the backwoods (see
here for a current example).
Few if any Irish politicians, though, would admit to being GOP supporters.