Keywords are huge for local SEO in Michigan and here are some tools to help you narrow down your keyword time.
- Google Keyword Planner Tool
- Moz Keyword Explorer
- Keyword Tool
Using these tools you will want to find keywords that are working well in Google and Bing when you are doing paid search. Also, always keep in mind you will want to look at long tail keywords.
All keywords have some kind of search volume, use it to your advantage.