Below you can find a list of overview manuals as useful introductions to legislative oversight.
Congressional Oversight Manual (2021) by Congressional Research Service, No. RL30240
Necessary and Proper: Best Practices for Congressional Investigations (pdf) (Project on Government Oversight, June 7, 2017)
When Congress Comes Calling: A Study on the Principles, Practices, and Pragmatics of Legislative Inquiry (pdf), Morton Rosenberg (The Constitution Project, 2017)
The Art of Congressional Oversight: A User’s Guide to Doing It Right by the Project on Government Oversight (Second Edition, 2015)
Examples of White House cooperation with congressional oversight (Co-Equal Resources: Guide to Congressional Oversight Precedent)