Why does it matter what your domain is?
Domain helps a few things.
1.) Easy for people to remember
2.) Helps with search engine optimization
3.) Explains what you do
Easy for people to remember
What you want is a short simple easy to remember domain name for your business. Some examples of these would be.
Short and to the point domain names are what you want.
If you have a business that does a service locally using the state or even better the city.
Helps with Search Engine Optimization