Clayton Keller, C/LW/RW, ARI (38 percent owned): Keller brings plus/minus concerns playing for the Arizona Coyotes (minus-8 through eight games), but is tied for second among rookies in scoring and has tri-eligibility in Yahoo leagues. He leads rookies in even-strength points (seven) and shots on goal (30), and is worth making room for in most formats, especially a keeper league.
Mikko Rantanen, LW/RW, COL (26 percent owned): The 20-year-old has held down a top-line spot next to Nathan MacKinnon for most of his NHL career, and it's beginning to translate to fantasy results. Rantanen leads the Colorado Avalanche in assists (six) and power-play points (five), and has seven points and 23 shots on goal in eight games. He has at least one point in five of his past six games.
Jason Pominville, RW, BUF (38 percent owned):Even-strength exposure to Jack Eichel has made Pominville a huge fantasy steal so far; he ranks eighth in points per 60 minutes (4.44; minimum five games played). He's one of the highest-ranked players (No. 41) owned in fewer than 50 percent of Yahoo leagues. The line of Eichel, Evander Kane and Pominville has been one of the most productive in the NHL early on, even with the Buffalo Sabres' slow start.
Reilly Smith, RW, VGK (10 percent owned): The Vegas Golden Knights didn't have a ton of fantasy contributors outside of forward James Neal and their goaltenders through their first few games, but Smith has emerged as a power-play specialist in his past two games. He has five points (two goals, three assists), three power-play points and four shots on goal during that span while playing on a line with Oscar Lindberg and William Karlsson and on a power-play unit with forward Alex Tuch and defenseman Brad Hunt.
Other third wheels worth monitoring: Kailer Yamamoto, RW, EDM (6 percent owned), Sven Baertschi, LW, VAN (2 percent owned), Alex Iafallo, C, LAK (2 percent owned)