Questions about youth football clubs/Academies? (Gothenburg)

Hi, My family will be relocating to Gothenburg in September. We live in San Diego, California. It is going to be a big change for us! I have two kids 10 and 16. The 16 years old boy plays soccer/football at a very high level here, he wants to continue playing at the same level, but we do not know where to start our search. I know football is big in Sweden! Anyone has any idea where can we go? Any good youth football clubs that you can recommend? Any help will be greatly appreciated :). Thank you