The Mi Sheberach from the Tosfos YomTov zt”l whose yahrtzeit was this Friday is indeed the best solution to stop the talking in shul. But it only works if names of those who do not talk are announced before making the Mi Sheberach. If there are too many names, then a list should be made and announced beforehand that the Mi Sheberach will be made only for names on this list.
The Mi Sheberach from the Tosfos YomTov zt”l whose yahrtzeit was this Friday is indeed the best solution to stop the talking in shul. But it only works if names of those who do not talk are announced before making the Mi Sheberach. If there are too many names, then a list should be made and announced beforehand that the Mi Sheberach will be made only for names on this list.