Read from the World of Warcraft client build files.
How White Tiger Helmet Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, White Tiger Helmet suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
White Tiger Helmet is part of the transmog set White Tiger Battlegear (Paladin only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where White Tiger Helmet Fits
Other Items Named White Tiger Helmet
2 other items in the current build are also called White Tiger Helmet. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 86681 (86676 to 86686) were usually added in the same batch as White Tiger Helmet: the same quest line, zone, vendor or reward set.