Any tool can rank channels. The ranking is the easy half, and on its own it is close to useless: you cannot tell whether the model understood your product or simply repeated what is popular this quarter.
What makes a recommendation checkable is the reason attached to it. markXpand reads your product and your objective and recommends the channels worth paying for, and every card carries a written justification plus a suggested peak posting window. If the reason does not hold for your business, you drop the channel in a click and the budget rebalances.
That matters most when the honest answer is fewer channels, not more. Spreading one modest daily budget across six networks usually buys six under-funded campaigns. Being able to read why a channel was suggested is what lets you make that call deliberately.