Feedback Advice on best approach: Animating multiple gameobjects

Ok so, I'm making a game where you place card to the highlighted areas in the image.

Once cards have been placed I want each area to have some unique animations depending on what kind of card has been placed. As you can see the areas are also bit different from one another.

My question: What is the best way to go ahead adding the animation to each location?
First I was thinking of just one animation controller keeping track of all the locations and adding animations, but playing several animation simultaneously in a single animator seems bit of a hassle.
My current approach is to add animator separately to each location and check with triggers what is getting animated.
Is this a good approach, in terms of performance (this aims to be a mobile game) or am I overlooking some obvious way to go about this?

any other advice or suggestions would also be welcome

Cheers!

 

I'm curious to learn, what would be the best way to deal with this, for your project.