Contemporary cusp hall of famers?

I'm now thinking about which players in MLB today are on the Hall of Fame margin (close to being in or not in)? For example, Gary Sheffield is probably a future in. John Smoltz is probably in. Frank Thomas...probably. Curt Schilling? Ivan Rodriguez? Trevor Hoffman? Bigio...should be. Not players you are sure should be in or not. But, players who are marginal.