Anyone know of a room to rent in London from 24/09?

Hello, my boyfriend and I are looking for a room or flat to rent in London for a month starting 24th September. South East would be ideal but we’re not too picky. AirBnB results are a bit uninspiring/pricey and Spare Room is full of rubbish so if any nomads are looking to fill their room we’ll gladly sublet off you! Not looking to spend more than £900/month tops. Thanks!