Minigame player death script help?

Hi, So I am working on a Minigame. I am stuck at the part of declaring who has won. I would like it to be many players that can win a round. I was thinking of some different ideas. One was to Change the players Team when they die. How would I detect when there is only one player left? If anyone has any ideas or can help me, please do so.

• I am not asking for a request but for some guidance.

Create a bool value in this script so the script can detect round is or is not in play(if you dont already have one)

local player = game.Players.LocalPlayer
local roundPlaying = script.RoundPlaying.Value -- Bool value
players = {}
dead = {}
won = {}
game.Players.PlayerAdded:connect(function()
	table.insert(players,{player.Character:FindFirstChild("Humanoid").Health})
end
if player.Character:FindFirstChild("Humanoid").Health == 0 then
	table.insert(dead,{player.Name})
	--Add change team here
end
if player.Character:FindFirstChild("Humanoid").Health ~= 0 then
	if roundPlaying == true then
	--Add stuff here
elseif roundPlaying == false then
	table.insert(won,{player.Name})
	--Add stuff here
	end
end

Idk if this will work, just going off the top of my head.