the goaltending stance is the basic foundation for a tender, but there are different styles that tenders have used throughout hockey. of course one must stay squared to the puck and on angle, but once there, some goalies, like price here, prefer a “relaxed” stance to help give the appearance of taking up the most amount of net.
this stance keeps the back relatively parallel with the ice, giving prominence to the blocking surface of the chest and is popular with most modern goaltenders who are “blocking” type tenders.
others prefer a deep crouch like niemi here:
this style sacrifices actual net coverage but seems to be used (paradoxically) by smaller goaltenders who rely more on athleticism and reflexes (which actually makes some sense, because they tend to rely a bit less on pure blocking abilities since they take up less net). see richter here for a pretty extreme example: