Look for Items Tier III or higher with more then 60 Enhanced effect
Strength Dexetity and Intelligence are also great Base stats to find on items
As for side stats (less important but add value) Critical strike, Max Life, Max mana
Here is an Image of the item stat Caps, the closer then are to the caps, the more value they have.
Also look thought these topics
https://forums.d2jsp.org/topic.php?t=76283592&f=272https://forums.d2jsp.org/topic.php?t=77415106&f=272Those are what we consider average drops, and therefore most have value