Looking for a double room in a flat / house

I am originally from Edinburgh in Scotland, but I have been living in East London for the last 4 years while working in an NHS hospital in Essex. I am starting a new career in June - I will be training to be a firefighter in London Fire Brigade (LFB). This has been an ambition of mine for a while so I am very excited to begin!
I am looking for a furnished double room in a flat or house, preferably sharing with other females or in a mixed gender household. I am a friendly and out-going person, and would like to live with people who are open to getting to know one another and socialising. However, I am definitely not a loud, party person. I will be working long hours and studying hard throughout my firefighter training course, so I do want to live with people that understand and respect that. I am a very tidy person and a considerate flatmate.
I love living in London and really enjoy exploring the city to find new food markets, parks and restaurants. I am a very active person. I enjoy running, cycling and going to the gym.