Nowhere better? Well personally I'm not that kind of sloppy sentimental Scot.
I've travelled quite a bit over the years to nice places and not so nice places. Norway, Iceland, Switzerland, Denmark, Luxembourg, France... and several other places have a great deal to offer. Nowhere is perfect and I think the idea that nowhere is better than Scotland is sentimental twaddle designed to appeal to the non thinker.
We are part of the EU (and without the traditionally Eurosceptic UK we might be a better member of Europe). Thanks to the EU, and EFTA, I include several Bulgarians, Hungarians, Frenchmen, Germans, Italians, Danes and Swiss among my close friends. And thanks to us being in the Commonwealth, I have Pakistanis, Australians and Indians in my friendship groups. As a member of a club for Petula Clark I have American, Australian, Canadian and all sorts of European friends... and some from the Philippines, China, Russia, Uruguay, Brazil and Chile. That's more multicultural than the UK, or certainly more multicultural than Scotland as part of the UK.
Multiculturalism actually seems to be a problem for many people in the UK and, as such it seems a bit disingenuous to use it in an argument for the union. A great deal of the richness that could come from it does not because of hatred and fear.