Here are three stocks with buy ranks and strong growth characteristics for investors to consider today, September 8th:Great Lakes Dredge & Dock Corporation (GLDD) : This dredging services company carries a Zacks Rank #1, and has witnessed the Zacks Consensus Estimate for its current year earnings increasing 6.3% over the last 60 days.Great Lakes Dredge & Dock has a PEG ratio of 0.96 compared with 4.89 for the industry. The company possesses a  Growth Score of B.PagerDuty, Inc. (PD) : This digital operations ...