2+ Players on a Touched Event?

I'm wanting to have 2+ players who can stand on a floor and earn money once every second. I need to know what function/event/whatever I can use to accomplish this. Any help is appreciated.

I did something similar to this once with Touched instead of Region3s. The way I did it was by using tables.

Here's a quick example:

local trigger = workspace.Part
local players = {}

trigger.Touched:Connect(function(part)
	local plr = game:GetService("Players"):GetPlayerFromCharacter(part.Parent)
	if plr then
		for i,v in pairs(players) do
			if v ~= plr.Name then
				table.insert(players,plr.Name)
			end
		end
	end
end)

trigger.TouchEnded:Connect(function(part)
	local plr = game:GetService("Players"):GetPlayerFromCharacter(part.Parent)
	if plr then
		for i,v in pairs(players) do
			if v == plr.Name then
				table.remove(players[i])
			end
		end
	end
end)

Then you can just determine who's on the part based on the values in the table