Mo is one where my current stock of cards is just not good. There's a handful of guys on the 91-100 I have decent enough cards of (1994 Score Dream Team for Larry Walker, 1982 Donruss for Ozzie Smith, 1991 Upper Deck for Moose) but I went through my Mariano last night and none of my preliminary picks were there. I have a huge soft spot for Leaf Signature to boot. I don't know if I'll be ponying up that cash for Mo, if I do it's that card.
I spent too much time last night going through the ten with the suggestions above and got each player 5-10 cards in contention. 91-100 seems like it's gonna be really easy/cheap. 81-90 on the other hand...well at least some of them aren't bad?
Currently, my contender list for those I haven't settled on my card yet
Mo Rivera: 1992 Bowman, 1996/8 Signature Series, 1997 Bowman/Bowman's Best, 1998 Topps Gallery, 1998 Topps Gold Label Class 2, 1998 Stadium Club, 2004 Donruss Timeless Treasures, 2007 Topps Turkey Red, 2008 SP Legendary Cuts, 2009 SP Authentic
Ozzie Smith: 1982 Kellogg's 3D Ozzie Smith, 1979 Topps Ozzie Smith, 1982 Topps Traded, 1984 Topps, 1985 Topps, 1990 Upper Deck, 1994 Fleer Pro Visions, 2019 Stadium Club,
Roy Campanella: 1953 Bowman, 1953 Topps, 1951 Bowman, 1954 Wilson Franks, 1956 Topps, 1957 Topps (realistically it'll be the 1956 - good price to want ratio for me)
Tony Gwynn: 1983 Topps, 1983 Fleer, 1985 Topps, 1989 Topps / Topps Big, 1994 Fleer Pro Visions
Larry Walker: 1998 SC Co-Signers, 1995 SC Base, 1994 Score Dream Team, 1990 Leaf, 1986 Burlington Expos, 1993 Donruss Elite, 1995 Leaf Limited, 1997 Bowman or Bowman's Best Intl
Roberto Alomar: 1988 Score Traded, 1996 Leaf Signature, 1993 Topps Finest, 1988 Topps Traded, 1992 Topps Base, 1992 UD w/ Sandy, 1998 Upper Deck National Pride
Mike Mussina: 1997 SP Special FX, 1991 Bowman, 1991 UD, 1991 Leaf, 1992 Topps Gold, 1992 SC, 1995 Studio Credit Card, 1996 Flair, 1997 Skybox Metal Universe, 1998 SP Authentic, 2002 Topps Gold Label
Ichiro: RC Topps Gallery/Topps, 2003 Playoff Portraits, 2004 Fleer Legacy, 2004 Topps Finest, 2005 Bowman Heritage, 2005 Donruss Studio Portraits DK, Topps Turkey Red (Horizontal), 2011 Topps Platinum/Cognac Checklist, 2012 Topps,