Here are three stocks with buy rank and strong momentum characteristics for investors to consider today, September 6th:Limbach Holdings, Inc. (LMB) : This building systems solution company has a Zacks Rank #1 and witnessed the Zacks Consensus Estimate for its current year earnings increasing 8% over the last 60 days.Limbach’s shares gained 8% over the last three months compared with the S&P 600’s advance of 3%. The company possesses a Momentum Score  of A.Zumiez Inc. (ZUMZ) : This specialty retailer of appa ...