When it comes to learning everyone should be aware that this is a lifelong process when you are entering the field of business processes and initiatives to make changes happen. Be aware that any change needs a solid ground of the right mindset and transparency.
Clearly it is everybody’s own choice where to focus and where to look next. However, we recommend to start with basics from lean six sigma. It will help understanding that less can be more, which makes change easier.
From there, you could choose the more classical approach with an organization like PMI, offering a broad spectrum of learning fields.
Alternatively, we decided for us, to go with SAFe®, as an open framework combining the best from many lean and agile areas. We are convinced it a future eye of the storm for changes.