Trouble Locating Blocks (non-entities) on _Spectrall's 1.20.1 Forge Plugin

I am working on a mod for a purpose I will not mention here, as it is currently a work in progress (not the purpose- the mod). I ran into an issue when trying to locate cauldrons and I can't seem to find my way around it. As I cannot code, there is no apparent solution. Basically, cauldron's are not block entities, so that rules out most options (if what I have heard is correct). Is there currently a way to record the location of each placed cauldron in every location, originating from a block placement event (in a procedure)? Thank you!