During reading up a bit I found something which might interest you:

Approximately about 20 to 40 Icelanders served in the Waffen SS, including the first president of Iceland (1944–1952) Sveinn Björnsson’s son, Björn Sveinsson Björnsson. Most of Icelandic volunteers fought in the 5th SS-Panzer-Division Wiking, or in the SS Nordland[citation needed]

https://en.wikipedia.org/wiki/Waffen-SS_foreign_volunteers_and_conscripts

Amid the 11,000 Ukrainian members of the former SS Galizien, who had fled westwards to surrender—replete in their German SS uniforms—to the British in Italy, only 3,000 of them were repatriated to the Soviet Union. The rest remained temporarily lodged at Rimini as displaced persons, many of whom became British or Canadian citizens as a result of Cold War expediency.

So up to 8000 Waffen SS Nazis did move to the UK, Canada or Germany.