For my part, couldn't give a flying. Did the team play good, entertaining football? All that matters.
After having said that, there are a few decent anthems in amongst all the dire stuff.
I'd go for:
Italy - "Fratelli d'Italia"
Japan - "Kimigayo" - short & sweet
Israel - actually a very old general European tune
also:
France - "the Marseillaise"
The old imperial anthem - "God save the Tsar!"
{As immortalised in the 1812 Overture which is doubly anachronistic. Ah, well.}
I appreciate this is all old hat,
but why do we have that awful dirge "God Save the King/Queen" anyway. That's the UK national anthem, Shirley?
Why don't we use "Jerusalem" for England? It's light years better.
https://www.youtube.com/watch?v=YbMJN35q1BQ