According to Yahoo Finance, George Soros believes that Alibaba Group Holding Limited (BABA) may be the best growth stock to buy. Soros, a well-known investor, has expressed confidence in the potential growth of Alibaba. The company has shown strong performance in the e-commerce sector and has a large market presence in China. With its diverse business lines and innovative strategies, Alibaba has attracted the attention of investors like Soros. As always, it is important for investors to conduct their own research and consider their own financial goals before making any investment decisions.