These are all default registry entries of this type.
This registry is modify-able through datapacks.
divine_missions_enchanted_book
minecraft_golden_apple
minecraft_leather
mmorpg_dungeon_key/common
minecraft_gold_ingot
divine_missions_enchanted_diamond_axe
divine_missions_enchanted_diamond_pickaxe
minecraft_chests/end_city_treasure
minecraft_ender_pearl
favor
minecraft_iron_ingot
aoe_exp
mmorpg_dungeon_key/rare
mmorpg_dungeon_key/epic
big_exp
minecraft_chests/simple_dungeon
divine_missions_enchanted_rod
minecraft_diamond
exp
minecraft_chests/buried_treasure
minecraft_emerald