Looking for a Room or to buddy up

Long term lease- I am a professional female aged 29. I am looking for an ensuite room to rent in a 2 bedroom flat from May 2026 (flexible) and have a budget of £1,400 (negotiable). I would prefer to find something in Zone 1-2 with good underground connectivity. I'm very easy to live with, friendly, clean, tidy and work from office 3-4 days a week. I'm not a party person and during weekdays just like to cook and read after work. I really value a very peaceful and trusting environment and someone who values the same.