Make your own Infant Formula
If you haven’t been able to breastfeed or are using commercial formula, here’s a ‘how to’ for your own formula from a guy with a Masters in Nutrition. It is goat milk based. It’s the closest to human milk.
Even when the shortage is over, consider the industry isn’t using the finest ingredients in the first place, also sourcing ingredients laden with chemicals such as glyphosate, let alone monitoring for pathogens in the production facilities. If you have the time, this is going to be better for your baby even when it's over.