The best option for improving the user experience of looking for and viewing commonly used reports is to update the Home page with access to commonly used reports. This way, the user can quickly access the reports they need without having to use the global search bar every time. This also follows the principle of designing for the user's goals and tasks, which is one of the learning objectives for the Salesforce User Experience Designer certification.Reference: [Design for the User's Goals and Tasks], [Change or Add Report Chart and Dashboard Components to Home Page]

: https://trailhead.salesforce.com/en/content/learn/modules/ux-designer-certification-prep/design-for-the-users-goals-and-tasks :1