I don't understand the question.

I'm Australian. New Zealand is undeniably our closest neighbor geographically and culturally. I'd like to think Canada is a close cultural neighbor, I'd also like to think that the US no longer is. Obviously we have strong historic ties to Britain but I've never felt that our cultures are closely aligned. These points might be contentious.

That said, my partner is Thai. The majority of visitors to our house would be Thai. We speak Thai in our house more than English.

I've lived all my life in Spain. The neighbors will always be Portugal, gabachos (France) and moros (Morocco, but also the rest of the arab world)

I guess France, although we kinda hate each other

Don't forget about Tobler's first law of geography.

Everything is related to everything else, but near things are more related than distant things

Cultural patterns will generally follow migration of people, which will largely be localized, but of course there are exceptions in which case you can get some interesting blends.

cultural as in the most culturally similar or as in geographically closest? because if we go on similarity then denmark and scotland should be on your list, at number 1 and 4 respectively. and norway has basically nothing in common with russia.

it's a fun but potentially extremely broad question; if you feel culturally russian, would your neighbors be all 14 of its bordering countries from finland to north korea?

I live in Argentina. Exactly,in Posadas, the capital of Misiones province. Our nearest neighbour is the City of Encarnación, Paraguay. Im 100% sudaca. Proudly sudaca, with all the good and the bad. Today, more bad than good, cause of the Milei goverment.

Sorry for my awful english

Canada and Mexico, countries

"Denmark to the north; Poland and the Czech Republic to the east; Austria and Switzerland to the south; and France, Luxembourg, Belgium, and the Netherlands to the west", culture