Young Professionals looking for flat or rooms

Hi, we are Eshaan and Fin, 23 and we have recently moved to London to start a job in the city. Looking for a stand alone flat in Clapham, Balham and surroundings (on the Northern Line basically). We recently graduated with engineering degrees from Bristol. I am working in a role in financial services and renewable energy with Fin working in data science. We are looking for a double rooms somewhere with easy access to the city and a good local pub scene, fitness spaces and amenities etc. for young people to enjoy. Hobbies include running, rugby, reading, working out and football.