How about Northern Ireland?

I studied for a PhD at Ulster's Jordanstown campus. If you are a CS, you should be on that campus. This campus is not in Belfast, so it’s not too far away. It only takes 20 minutes by train from Belfast (in Northern Ireland, we usually take the train when we go out).

Belfast is underdeveloped now. It used to be OK. It was a shipbuilding center. You can vaguely see its former glory. There are not many people in this city, 200,000. Last year, the number of Chinese was in the thousands (6,000 or 8 thousand, forgot). So basically no Chinese people are seen. The Jordanstown campus is okay. Because there is a cooperation project between three Chinese universities, dozens of Chinese people go there every year.

Because you asked the question "What city is it equivalent to in China?" I assumed that this was your first time going abroad. Because foreign cities are not comparable to domestic cities, in terms of living environment, few cities in China can compare with this. In terms of convenience of life, even a small county in China will be much more convenient than here. Everyone has different requirements for the city, and they have to adapt themselves.

It is difficult to stay in Northern Ireland after graduation, as it is even more exclusive than London. Unless you stay in school. You can try this route, because Ulster is a terrible school, so you can still stay. You are a CS major, and there are quite a few Chinese PhDs in this major (4 or 5, I think), so you won’t be alone (by the way, I was the only Chinese in the entire hospital back then...)

I strongly recommend you bring your girlfriend there because the Jordanstown campus is by the sea. Let's put it this way, if you live here alone, this is a hell of loneliness. If you live here as a couple, this is a paradise of happiness. Really, this kind of countryside is very comfortable for two people to live in.

It’s a bit too much to talk about, and it’s not coherent because it’s a bit general.