Looking for a social flat - newly moving to London

I work in consulting and in this context now transfer to London.
I am originally from Munich, where I have lived the past years. As part of my studies, I have already lived in Portugal and France, as well as a few months in London.
I am now looking for a place that is as central as possible. Also, I would like to find a social flat share, meaning I’d be happy to spend time together. I’m quite tidy and neat. I’m a very sociable person, so whether it’s cooking, nights out at the pub, sports classes, weekend trips, etc., I’m up for anything!