Invest in Britain. You might make a fortune. Take a punt on a fintech company or an artificial intelligence startup. Better still, join the rest of the world by targeting property, which is the go-to asset class for 80% of global investments seeking a stellar payout.
Whatever you do, avoid retail. And steer clear of manufacturing, which needs lots of startup capital and precision engineering, and offers only slim margins and modest returns as a reward for all that effort.