Hi,
You have One stop solution to take care of all RMA aspects within your store.
Features:
Backend management: Managed via step by step RMA processing
Two-way notifications: Used for status changes and messages
RMA request creation: created via intuitive submission form
Guest orders: you can enter for an RMA request also
Extension settings: for adjusting various workflow elements
To get more info on Magento 2 extensions ,please click on Modulebazaar Marketplace