Young professional seeking flat from March onwards

Hi there,
I'm searching for a flat in London from the 5th of September/beginning of September onwards. I am 22 and a young professional- I work as a fashion buyer at a vintage boutique in Notting Hill. I'm looking for either a studio or a flat share with an individual room (would prefer to share with up to 3 people, but I'm willing to consider other offers). I have no particular preferences for a flatmate. Some more details about me:

- I studied a BSc in Anthropology at UCL
-I work 5 days a week at a boutique in Notting Hill
-I also sometimes act as a freelance film critic for multiple UK-based publications
-I currently live in Holborn
-The contract for my current flat expires at on 9th September
-I can provide details of a suitable UK-based guarantor who would pass referencing checks
-I would be at the flat largely during the morning and during nights- I usually spend most of the day outside
- With the exception of work shifts, I am flexible with my current schedule

If all this sounds good, please feel free to let me know about any flat vacancies that would fit, or if you'd like to buddy up to find a flat share.