Looking for a room in and around central london

A little introduction, I'm 23 and currently working for a large investment bank ( on the tech side ). I've been living in London two years now, having originally grown up in milton keynes and studying at the university of Birmingham, so looking for somewhere nice, safe, with friendly and sociable housemates and good connections into the centre. Whilst at uni I was living with friends in a house of 6 (4 girls, 2 guys), which was always clean and welcoming so I'm pretty used to having flatmates and chill when it comes to doing chores. A few interests of mine include: netflix and watching nearly any movie, any outdoorsy things or sports (was trying to get better at tennis but hurt my wrist last year), entrepreneurial things and making websites.

I'm very flexible interms of timings; as I'm looking to branch out/upgrade from my current place ( was always meant to be temporary for when I first move), and equally flexible in terms of budget and location