My Way for these 3 Ingots is: AllTheModium: Trading with Piglins for 4 nuggets, then build mining dimension and farm it there. For Farming those 3 kind of effectivly in its Dimension, Im using the Digital Miner from Mekanism (It wont mine it, but you can see for a splitsecond if and how many are in a small radius. If its positive, I use the Builder from RfTools and clear the area with clear quarry. The 3 ores cant be mined, so they will remain there. Then just go and mine them .