Here at Zacks, we focus on our proven ranking system, which places an emphasis on earnings estimates and estimate revisions, to find winning stocks. But we also understand that investors develop their own strategies, so we are constantly looking at the latest trends in value, growth, and momentum to find strong companies for our readers.

Of these, value investing is easily one of the most popular ways to find great stocks in any market environment. Value investors use a variety of methods, including tried-and-true valuation metrics, to find these stocks.

On top of the Zacks Rank, investors can also look at our innovative Style Scores system to find stocks with specific traits. For example, value investors will want to focus on the "Value" category. Stocks with high Zacks Ranks and "A" grades for Value will be some of the highest-quality value stocks on the market today.

One company to watch right now is Accel Entertainment (ACEL Quick QuoteACEL - Free Report) . ACEL is currently holding a Zacks Rank #2 (Buy) and a Value grade of A. The stock is trading with a P/E ratio of 16.16, which compares to its industry's average of 32.53. Over the past 52 weeks, ACEL's Forward P/E has been as high as 17.76 and as low as 11.88, with a median of 14.44.

Value investors also love the P/S ratio, which is calculated by simply dividing a stock's price with the company's sales. This is a popular metric because sales are harder to manipulate on an income statement, so they are often considered a better performance indicator. ACEL has a P/S ratio of 0.83. This compares to its industry's average P/S of 1.5.

Value investors will likely look at more than just these metrics, but the above data helps show that Accel Entertainment is likely undervalued currently. And when considering the strength of its earnings outlook, ACEL sticks out as one of the market's strongest value stocks.