Designing a UI for when a user chooses a character

So, I’m creating a UI here that is meant to scroll through a list of characters by random selection, and home in on the character the user has selected.

As of now I’m trying a Scrolling Frame, that has a bunch of other frames in it per square as you can see.

The images are either going to be replaced with random characters or friends of the user

As I’m not sure on whether this method is efficient do you have any tips for making something like this?

The one that doesn’t have an image (or has a non-visible image) is the visualization of the user’s frame by the way.