Bear in mind these are not definitive and just my guesses but I enjoy the creative thinking!
An organisational giant like Amazon?
I’d say it would involve the Tower because it’s a huge and established organisation
It’s a global organisation that delivers books and other items
I would represent Amazon as something like:
Tower-Ship-Book
Organisation-Global/Delivery-Book
A game-changing innovation?
The Key represents significance and answers, so it would be the thing that unlocks the game-changer. The Sun for success, and Storks for innovation and change.
Storks-Key-Sun
Change/Innovation-Significant-Success
The International Space Station?
It’s really “moving research hub in space” so what about this:
Ship-Stars-Books
Ship-Stars-Research
Depending on how you see the station (as a mode of transport or a place where astronauts reside), you could also have the House instead of the Ship
Climate change?
I’d choose the Tree or the Garden to represent the natural world. The Mice for a sense of erosion and destruction, rather than the Storks for change, as that tends to indicate something more positive. And Clouds for climate.
Clouds-Garden-Mice
Climate-Outdoors-Destruction
A medical breakthrough?
Again I think i’d have the Key for “the Answer” and the Sun for success, with the medical represented by the Tree card for health.
Key-Tree-Sun
Answer-Health-Success
Dating apps like Tinder?
The Scythe makes me think of swiftness and the swiping and quick decisions in the world of love. I was going to say Letter for the app itself, but actually, most of the decision-making is about choosing people or not, so I am going to say the Crossroads instead.
Crossroad-Heart-Scythe
Options-Love-Quick Decision
Social Media in General
Only two cards needed for this I think. The Garden for the Social and the Birds for the Communication.
Communication-Social
What did you think?
Would you choose different representations?