What is the best practice to move Test to Production in NR

Summary:

What is the best practice to move selected development objects from Test to Production in NR

Content (please ensure you mask any confidential information):

We know Cloning the test instance with Production is a possible approach to move Test to Production. But this will be a issue when ongoing development is going for a new package or report in Test and Production is still in use.

There is no custom migration activities to choose artifacts to be migrated or backed up.

To say it correctly, Cant we migrate a Report package with all underlying objects including Reports (Paths to artifacts can remain same) ??