Add Q&As to GBP.
There is a "Questions & Answers" section on everyone's GBP. This is a place for potential customers to ask questions they have about the business.
For us, it is a place to add important keywords one more time, and provide customers more info before visiting the site.
As a team, come up with 4-5 Q&As that are relevant to the business, and use important keywords that would benefit the business. Once a week, post the question (from a personal profile, not TGH account), and then answer the question (from the TGH account, not your personal).
The best Q&As will have the keyword in both the question & answer. Example:
"Do you provide mobile locksmith services?"
"Yes! Just give us a call and our mobile locksmith team will meet you wherever you need!"