Single Professional Female Seeking London Room

I am a 31 year old professional in the arts sector looking for a double room, under £500 with bills included, that has a nice, safe, cosy atmosphere. I am quiet, clean and polite. I keep to myself but I am very happy to socialise with housemates too, especially keen on boardgames, movies, walks, trips to the theatre, etc. I will be away sometimes with family. Ideally I am looking for somewhere I can stay for at least a few months, looking to stay for 6 months or longer all being well. My work is hybrid so I will sometimes have to work from home, but I could try to work around that if it is a dealbreaker. I am very open minded on the area of London but would prefer not to go to far east or further south than Croydon.