There are a total of six Bargainer Statues to find in The Legend of Zelda: Tears of the Kingdom, with one of those being easily found on Hyrule's surface and the other five requiring players to brave the darkness of the Depths. Players can find most of these statues quite easily using nearby chasms and the navigation assistance that various Lightroots provide, but there are a few that may prove troublesome to reach. As each Bargainer Statue is discovered, their available inventory will expand, so finding all six of them is more than worth it.
Source:https://www.cbr.com/totk-bargainer-statue-guide/