Hoyer, who a week ago said the asking price was still high, said, "People are starting to get serious and engaged a little more."
The Padres are looking at adding a starting pitcher, though that might be difficult to pull off before the Trade Deadline.
The Padres are primarily looking at middle infield depth, a player who could play second base, shortstop and potentially give third baseman Chase Headley a day off on occasion.
Veteran second baseman David Eckstein is on the 15-day disabled list with a right calf strain. There's no timeline for his return, though an MRI taken on Monday didn't show damage other than the strain.
The Padres have interest in Jeff Keppinger of the Astros. Keppinger has played second base and shortstop for Houston this season.
Ryan Theriot of the Cubs is another player of interest. He also has played second base and shortstop this season.
The team also has inquired about veteran infielder Miguel Tejada of the Orioles, who could play third base and shortstop.