Projects vary in scope and requirements, which means that the correct implementation methodology will also vary. It has been effective for our company to use Agile roadmap planning https://www.phoneswiki.com/what-does-agile-roadmapping-look-like-in-practice/ to manage the project. This roadmap supports portfolio management and simplifies the coordination of related products. This has shown excellent results.
There are many methodologies to choose from, each with its own set of rules, principles, processes, and practices. Which methodology you should implement depends entirely on the type of project you will undertake. The point of selecting a project management methodology is to maximize the use of resources and time.