So first thing first ! need to speak English, then easiest job for young man is a event crew. you can find company's all over England and money is good but you can find that you work long hours. If you don't have lot of money to start with do not come to London as living cost is high and work hard to find as many people are looking and if you are coming after universality start then it will be hard to find a cheap flat, room and it will affect getting a simple jobs like bar work , kitchen porters, cleaners etc. Plus if you want to work on construction sites you will need health and safety card and not just one. So what im telling is look in to it before you come. yes like me i came with 500£ on me at 2004 and i made it but it was a different world back then and not so many people were out of work and accommodation was cheaper than now