For Magento 2 Returns Management, the must-have features you need to look are-

• Return Request Submission: Easy and intuitive process for customers to initiate returns.
• Return Authorization (RMA): Automated generation of RMA numbers for tracking returns.
• Automated Return Processing: Workflow automation for approving and managing returns.
• Return Reasons and Conditions: Customers can specify reasons and conditions for returns.

You can use our Magento 2 RMA Extension for better Magento 2 Returns Management.

Read this guide on How to Configure Return Merchandise Authorization (RMA) in Magento 2 Store to setup this extension.

Here are the few more resource to help you get most out of this Magento 2 RMA Extension.

• How to Manage Customer Orders Returns in Magento 2
• How to Setup Order Confirmation Email in Magento 2
• Streamline Product Returns with RMA Magento 2 Extension
• How to Manage Return Requests Effortlessly with Magento 2 RMA Extension