At Abbey College Manchester, I attended an academic English course: I wanted to pick up something more serious than the typical English on the beach.
The choice of the school was done by the company Smaps - thanks for the help and advice! Indeed, choosing England was the right decision: the language practice, as they say, on all sides, and the institution itself is very prestigious (in fact, it's a whole grid, so you can be as confident), plus, again, Manchester is a large, developed and interesting city, it was very pleasant to study here.
The very same course I will not name the most difficult. Saturated and intense, yes, the first days were difficult to adjust to endless English from all sides.)) But then everything went much easier. I would like to note the wonderful teachers - I liked them very much: they explain everything clearly, accessible, understandable and several times, with a bunch of examples, not from textbooks, but from "living" sources: the Internet, newspapers, lyrics, during our conversation in the classroom. I recommend the course and school to anyone who wants to develop significantly in English - this is what you need.