Help a newbie make particles animation

Hello, I'm not sure this is the right place to post this. I'm sorry if it's not.

I'm a total newbie at Unity and I want to do a specific animation here is a preview of what I wanna do :

I really don't know how could I achieve that. I searched a bit about particles but couldn't find what I was looking for. The number of coins/particles will depend on a specific variable. I guess I should maybe instantiate some prefab of those particules and then make them move to a specific point, but I also would like to make their path a bit different each time (so they don't overlap).

Thank you!