To give you direction I’d like to understand the purpose. If you’re familiar with software engineering you can draw a parallel between vastly different approaches eg FPGA programming vs native app development.

Are you looking to understand strategic (brand/integrated) approach to marketing or tactical (eg performance marketing)? Are you interested in understanding marketing to help specific objectives or to assist a business at different stages? (Aided Awareness or conversions). Are you interested in targeting consumers or businesses.

Let me know and I can provide some directional guidance.