Some of my favourity high-level resources include the following.
Research Methodologies: Mindful Inquiry is one of my favourite high-level books. I discovered it some time between my MA in Leadership and PhD and find myself referencing it regularly for many purposes. This is not a book to teach you the ABCs of particular methodologies. It does help you think about who you are as a researcher, your research context, and how those things fit together to guide your choices of methodologies and research tools.
Dissertations from the Heart: Although I’ve not yet read this The Authentic Dissertation, I’ve talked to the author about it, read segments, and think it has great promise. It touches on many things that interest me as a researcher, including ethnography, Indigenous perspectives and the power of narrative.
Terminology: Academic terminology can be daunting, especially for adults who move into academic work after decades in the workforce. Here are a couple of glossaries that may be helpful. This site provides basics about the world in which academics operate, defining terms such as “tenure” and “impact factor”. This site includes quite a bit of research terminology. It has some gaps; let me know if you have other recommendations.