Well it all depends on what kind of job you're interested in or looking for or are qualified to do.
There are several jobs spread around London so you're sure to find something such as in retail, office work, stock room assistants, Cinema Host, Customer Assistant.
Those are just a few but there are likely a lot more jobs that you can probably get hired into if you do some searching and apply for those jobs.
You can check for jobs in and around London through https://www.indeed.co.uk/jobs-in-London
Good luck and I hope you find a good job you're looking for.