Agile methodology and ISO 27001 implementation

Please note that Agile is not a methodology, but a set of methodologies people-focused and results-focused, most used for works with very dynamic requirements. Some examples are:
- Agile Scrum Methodology
- Lean Software Development
- Kanban
- Extreme Programming (XP)
- Crystal
- Dynamic Systems Development Method (DSDM)
- Feature Driven Development (FDD)

Project management approaches are not our filed of expertise, so we avoid to provide recommendations related to them, but you can find useful information  in this article:
- How to use Scrum for the ISO 27001 implementation project https://advisera.com/27001academy/blog/2017/03/27/how-to-use-scrum-for-the-iso-27001-implementation-project/