Student looking for room in or near London

I'm Joshua, a final-year Animal Biology student at the Royal Veterinary College, returning after a year's research placement in Czechia. I'm looking for somewhere to settle into for the academic year, ideally within reasonable reach of Potters Bar.
As a housemate I'm independent and tend to keep myself busy. I look after shared spaces, keep things clean, and am straightforward to live with. Non-smoker, no pets.
I'm looking for somewhere relaxed with housemates who are easy-going and considerate.