My sales team use traditional method to analyse sales activities. Can somebody suggest me the best tool for sales management?

This is difficult to answer without more specific information. I believe there is no best solution, but rather which is better for any given situation. Price point can be a large factor while sale volume, market and product types can be impactful. You have to consider what infrastructure is already in place, and how difficult integration will be. Even the language of the software is important.

Can you provide more about your situation?