Finding the perfect addition to your Fantasy baseball team via the waiver wire is the key to winning in any Fantasy league, but if it were easy, anyone could do it. And if you're searching for a hitter to round out your Fantasy baseball lineup, you absolutely need to see what SportsLine's Fantasy expert Alex Chamberlain has to say.

Chamberlain is a 5-time Fantasy Sports Writers Association award finalist and was recognized as 2015's Newcomer of the Year and 2018's Fantasy Baseball Writer of the Year. He competes in Tout Wars and contributes (other) work online at RotoGraphs and in print in Lindy's Sports annual Fantasy Baseball magazines. Previous bylines include Baseball Prospectus and Rotoballer. If there's anybody who knows what it takes to win a league, it's him.

Now, he's done an in-depth analysis of the best hitters who are widely available entering Week 8. One we'll give away: Cincinnati's Derek Dietrich, who's available in over 60 percent of CBS Sports Leagues. 

"Dietrich, who has never hit more than 16 home runs in a season, already owns 10 this year -- in fewer than 100 PA," Chamberlain said. "That kind of offensive outburst is difficult to ignore. While it's probably not sustainable, one might figure Dietrich can keep bopping home runs given extremely elevated rates of fly balls (51.6%) and pulled balls in play (46.0%)… Obviously, Dietrich is not a 60-homer hitter, but he could have a nice 25-homer season in store and a batting average that won't kill you."

Chamberlain has also identified which hitters you should target on waivers if you need a jolt for your squad, including an undervalued player who's poised for a breakout. Anyone who adds this player could hit it BIG.

So which hitters should you target on the waiver wire? And which undervalued hitter is a must-add selection? ... Join SportsLine right now to see the best league-winning free agents, all from one of the most respected voices in the industry!