score:5
I can't see your video so I'm not quite sure what you mean by "hidden fees", but maybe KAYAK's comparison table of airline fees for baggage, meals, pets, minors, and extra legroom would be a helpful starting point.
Regarding baggage fees specifically, KAYAK's flight search lets you include these when comparing flight prices. After performing a search, click "Show Toolbox" at the top of the left navigation bar, then "Add Baggage" and input the number of checked bags.
Upvote:2
You don't say what parts of the world or what airlines you might be interested in, but British Airways have a calculator for comparing their fares against Ryanair and EasyJet, including "hidden" fees. Of course, you have to take it with a pinch of salt as obviously they are trying to sell their product, but it's still useful if you're looking at the UK market.