I wanted an Equipment Tier between Iron and Diamond so I created it myself, Rose Gold.
I'm positive this had to of been done before, but I couldn't find any available for Fabric 1.19.2.
This Equipment Tier combines the Enchantability of Gold with the Durability of Copper fitting perfectly between Iron and Diamond level.
Diamond/Netherite Tools are still a ways above Rose Gold, so don't worry about this being over-powered.
To Craft any of the Rose Gold tools, simply place a Gold Tool in a Smithing table with a Copper Ingot.
Armor version here --> Rose Gold Copper Alloy Armor
Feel free to use this in any Curseforge Modpack.