Need your advice ? For a gift purchase

I need all of your help.

I want to purchase a box of Pokemon Cards for my kids to collect.

Trying to pick a box what they might find something of value.

After they have watched a ton of opening videos I want to pick something cool

Buying from local card store so limited choices.

Whats better : Booster Packs, or the Display type boxes with clear fronts, Trainer Boxes

Any recent series better that others

Thank for any advice