To show reports and dashboards with Opportunity Forecast by Product family with team Quotas, creating a custom report type that includes Forecasting Quotas and Forecasting Items is the recommended solution. This custom report type allows sales managers to generate detailed reports that combine information about forecasted opportunities and the quotas set for the team, providing a comprehensive view of performance by product family.
Reference:
Custom Report Types
Forecasting in Salesforce

The Data Import Wizard and the Data Loader are both tools that can import data into Salesforce and assign records to a queue or run an active assignment rule1. The Data Import Wizard can import up to 50,000 records at a time, while the Data Loader can import up to 5 million records at a time2. Both tools can also prevent duplicates by matching records based on external IDs or Salesforce record IDs3.