These stocks can power your returns for years to come.Holding shares of growing companies is one of the most efficient ways to build wealth over time. The key is to maintain a long-term mindset, ignore short-term volatility in the stock market, and concentrate on investing in companies that possess a competitive edge.Here are two growth stocks that would make solid investments right now. 1. RedditReddit (RDDT +4.26%) has quickly become one of the top three most visited sites in the U.S., turning the convers ...