In addition to the PropertySuggester extension, we also have a python script/tool we use when updating the property pairs database table that PropertySuggester uses.
https://github.com/Wikidata-lib/PropertySuggester-Python
We run the tool on labs, but then use the results of the script to update the production table.
I think this should be moved to gerrit also, so we don't have code scattered as many places and can maintain this more easily.