How do I make a piglin barter item? gold alternative?

The title says it all, im looking for an alternative for gold to trade with piglins, it doesnt have to replace gold, it just adds another thing that they like. For example, they pick up gold, gold nuggets, and gold armor and tools, so is there something I could use as a trade? like if i wanted to trade with piglins with fire resistance potions, they would trade the same loot tables as if they were trading gold. does that exist? if so how do i do that?