Migrating work items and backlogs from TFS/ADO to Cloud ADO efficiently

Hi, looking to migrate work items/sprints/backlogs from TFS/ADO self-hosted to Cloud ADO. Any suggested tools (Microsoft recommended)

if you’re not considering the official import tool, then Microsoft would recommend you this: https://marketplace.visualstudio.com/items?itemName=nkdagility.vsts-sync-migration

Okay, thank you. I saw it and precisely was a bit divided over official and suggested. I will give it a spin. Thank you for response. Appreciated!

PS: Will keep posted on some helpful takeaways in case somebody stumbles upon such use case