Well, the furthest-right of our main parties is Reform UK, led by Nigel Farage. And the thing about him is, he's very good at walking the line of acceptability. He knows how to appeal to far-right racist types, without actually saying anything overtly racist himself, that would cause him to alienate his non-racist supporters.
Though, I myself am not a fan of the guy 😛 . Instead, I voted for the Liberal Democrats (who are actually somewhat more moderate than Labour: the word 'liberal' in a European context is basically "Libertarian lite", i.e. the party is centre-left with some libertarian-ish leanings, but is not out-and-out libertarian).
The Lib Dems didn't win my seat (I'm in a safe Labour area), but I am glad to see the back of the Conservatives!