Goldsmith is stationed right in the middle of the City Campus so I doubt you'll have trouble meeting people. From what I heard it has plenty of Freshers as well. It will most likely have filled up by August so if you wait until then, you won't have much choice. Glasshouse is too expensive and I had a look around it, definitely not worth what they ask for. IQ seems to be very reasonably priced and it's a nice accommodation but you might miss out, considering it's a 15 minute walk from campus and you're a Fresher (I'm not necessarily right though). I recommend Goldsmith.