I think this depends a lot on the culture. I've found (in Barcelona) that it was hard to integrate initially due to language barriers and lack of an existing lo

I think this depends a lot on the culture. I've found (in Barcelona) that it was hard to integrate initially due to language barriers and lack of an existing local network to bootstrap from, but over time those issues have disappeared. 6 years in now, my social circle here is far larger and more diverse than my network in London where I was before. You do need to somehow actively engage yourself with the community though to make this work. Strongly recommend working from a coworking as much as possible. It forces you to frequently meet new people, gives you day-to-day language practice, and really helps to build a network of small connections that eventually power your social life long-term.