With the major stock market indexes hovering around all-time highs, there aren't as many dirt-cheap value stocks hiding in plain sight. But there are plenty of opportunities if you know where to look.Utilities, airlines, and stodgy industrial companies won't light up a growth investor's radar. However, they can be exactly what dividend seekers are looking for to boost their passive income stream.Here's why these three Motley Fool contributors think NextEra Energy (NEE 1.39%), United Airlines (UAL 14.33%), a ...