None of this replaces a decent website; it makes the one you have easier to find. Across a large enough sample, the correlation between consistent data and phone taps is difficult to dismiss. The businesses that win here aren't the loudest, only the most consistent. Claim what exists before creating anything new, duplicates are harder to remove than to avoid.
Common traps. A citation is any place on the web where the website field shows up for {entity_s}.
Aligning without drift. Photograph or screenshot each profile before editing, reversions do happen, assuming the basics are already in place.