pf2e.fyi
From Pathfinder Lost Omens Absalom, City of Lost Omens, which isn't enabled.

Azarketi Weapon Expertise

FEAT 13

Your mastery with weapons both above and below water is unmatched. Whenever you gain a class feature that grants you expert or greater proficiency in certain weapons, you also gain that proficiency in Crossbows, Hand Crossbows, Longspears, Spears, Tridents, and all azarketi weapons in which you are trained.

Pathfinder Lost Omens Absalom, City of Lost OmensOGL