I don't know where to start for my party system?

Okay so I'm making a party system and I want it so when the party leader gets teleported everyone else in the party gets teleported this is an rpg type game with portals that teleports you to a different place like the teleport system

I really dont know where to start how would i cast the array through all the players when theyre object values

heres the party script

game.Players.PlayerAdded:Connect(function(player)
    local PartyFolder = Instance.new("Folder",player)
    PartyFolder.Name = "Party"
    local User = Instance.new("ObjectValue",PartyFolder)
    User.Name = player.Name
    User.Value = player
    print(User.Value)
end)