I ordered some of those that
@Slater suggested but haven't received them yet. I currently prefer the New Bee brand for T500 (5mm) which I buy through Amazon. They're cheaper there than at Gearbest which isn't the first time I've seen that happen (Amazon cheaper or the same price as Gearbest or Aliexpress). I also have generic unbranded foamies from Gearbest that I don't like as much as well as the KZ brand pseudo foamies which once I received them I could understand why nobody likes them. They're not really foam just very squishy very soft plastic.
Not that it applies to any KZ 'phones that I know of but I like the Rebound brand via Amazon for T100 (3mm nozzle) size. Which has me a bit confused because you mention T100 & T200 (4mm) size tips in the KZ thread but I thought all the KZ products had larger nozzles and use the T500 (5mm) size.