Bundles
People buy a set faster than they buy three separate things, and they pay more for it. The bundle is one product, one price and one delivery.
The buyer gets the whole set from a single payment.
Above the sum of the parts, because it saves them choosing.
A guide, a template and a call can sit in the same bundle.

Bundles are just products; the 0% platform fee (on paid plans) applies to them like anything else.