Buying shares of strong companies when they are on sale is an effective strategy for building wealth in the stock market. Even the best companies in the world have trouble avoiding weak sales in a recession, but investors who stay focused on the long-term value of these businesses will come out ahead.

Three Motley Fool contributors were recently asked to provide information on three top stocks trading at bargain valuations that could see their stock prices soar over the next several years. Let's see why they like Roku (NASDAQ: ROKU), RH (NYSE: RH), and Williams-Sonoma (NYSE: WSM).

Jennifer Saibil (Roku): The streaming industry exploded over the past few years, but it looks like the high-growth stage is winding down. That leaves several companies competing for the same subscribers while trying to raise prices enough to cover the increased costs of content production.

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Source Fool.com