Right now my personal recommendation would be:

• X for Audience

• Newsletter for Tribe

• Digital product for Offer

There are 50+ options at each stage but these three give you the best chance of success.

Obviously this depends on your niche. If you were in B2B (business to business, ie. selling to businesses not individuals) then LinkedIn might replace X for audience.

But for 90% of businesses this core setup of X, newsletter and digital products will be optimal.

This is the setup I recommend to anyone setting up their first online business if they want the best chances of success.