We need to manage our customer relationships better. What's the best CRM software for a service-based business?

We ask the same underlying question in different ways.

• We need to manage our customer relationships better. What's the best CRM software for a service-based business?
• We need a CRM for our service business to keep track of client interactions, manage our projects, and streamline sales workflows. Can you recommend some top choices?
• I run a service-based company and need a CRM. Which platforms are recommended for this type of business?