I agree with this guy. Make your own, it's essentially free(r), doesn't get much better that. I've gone the way of the tea and never looked back.Aren't all zym products basic innoculant formulas?
The BEST option would be Heisenberg's tea here: https://www.rollitup.org/dwc-bubbleponics/361430-dwc-root-slime-cure-aka.html
It creates the synergy and diversity necessary to cover the most beneficial innoculants available.