To get you started, here are some names spotted recently on MLBtraderumors.com and other sites.
The Phillies could be looking to address bullpen help even before they wrestle away a starter. Luis Ayala is available now, having been designated for assignment by Minnesota June 22. Keeping in the American League, Seattle's Miguel Batista is reportedly on the block as someone with a rubber arm to devour middle innings. Closer Joakim Soria is reportedly unavailable, but the Royals may be prepared to trade pitching. Former assistant Mike Arbuckle was spotted scouting Phillies' farmhands. David Murphy of the Philadelphia Daily News speculated that right-handers Gil Meche and Brian Bannister might be potential targets for his former associate Ruben Amaro Jr. Other starters floated recently include Arizona's Doug Davis and New York's Chien-Ming Wang. There's a report that the Blue Jays want to get out from under Vernon Wells and Alex Rios. Neither would be a fit for the Phillies' needs, but Austin Kearns and Josh Willingham of Washington might. Kearns is having a horrible season, but might fit as a 25th man off the bench. Willingham, the worst-fielding outfielder I've seen all season, represents my idea of a great 4th outfielder with right-handed pop. The price may be too high for him; Willingham belongs in the American League.