Showing Player kills at the top of screen help

So, I have a round system in my game and want to show the top 3 players with the most kills at the top and I want it to update constantly throughout the round so it always shows the top 3 players with most kills.

I have a number value for when the player goes in the round and it adds to it when the player gets a kill so obv I would use this but I’m not sure how you script this and I want to make it look something like this games system.

Example
KillRace Gui