Hi Jim,
Justin's first two courses were aimed at people wanting to either get better at content (ContentOS) or grow their following on Linkedin (LinkedOS).
The CreatorMBA is a combination of the two and goes into a lot more detail around picking a problem to solve, validating that choice, building a following around that market and everything that goes into it. So from a nuts and bolts from scratch perspective, the CreatorMBA would be great for a beginner.
There's also a ton of free stuff on youtube if you have the time to sift through it all.
Hope that helps,
Cheers,
Alan