how to get only the closest part in a pair instead of everything in it?

so, im trying to make my npc find only the closest part in a pair, but instead it gets all of the parts and goes for the first one, is there a way around it?

function FindJob()
	local DistMin = 500

	for _,v in pairs(game.Workspace.Waypoints.Trabalho:GetChildren()) do
		local Pos2 = v.Position
		local dist = (Pos - Pos2).magnitude
		if dist <= DistMin then
			destination = Pos2
			followPath(destination)
			print(destination)
		end
	end
end