according to zero tackle , these are the 2RFs off contract this year
https://www.zerotackle.com/rugby-league/players/by-position-2017/
Sitaleki Akauola, John Asiata, Nelson Asofa-Solomona, Billy Bainbridge, Mitchell Barnett, Scott Bolton, Dean Britt, Kurt Capewell, Michael Chee-Kam, Anthony Cherrington, Jack de Belin, Joel Edwards, Adam Elliott, Lachlan Fitzgibbon, Salesi Funaki, Alex Glenn, Jack Gosiewski, Brett Greinke, Slade Griffin, Aidan Guerra, Chris Heighington, Ryan Hoffman, Jacob Lillyman, Kyle Lovett, Jake Marketo, Will Matthews, Tyrone McCarthy, Chris McQueen, Tepai Moeroa, Mark Nicholls, Marata Niukore, Matt Prior, Robbie Rochow, Scott Schulte, Patrick Sipley, Scott Sorensen, Ben Spina, Joe Stimson, Kelepi Tanginoa, Jason Taumalolo, Zane Tetevano, Bodene Thompson, Kyle Turner, Johnnie Walker, Tony Williams, Frank Winterstein
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obviously the standout in that list is Taumalolo but he's more likely to be a Cincinatti Bengal in 2018 than a Wests Tiger .
After that I'd take Asofa Solomona but we're yet to see if he can play big minutes which will be crucial in coming years with reduced interchange . Can't see the Storm letting him go either .
McQueen is probably the next best option on that list for what we're looking for in experience & size .