After much trial and error i usually buy Icim or Pinar butter and other dairy products.
Both butters sell in cone shaped packets.Icim blue is unsalted the red packet salted.
Milk i buy in pink boxes which is skimmed doesn’t have that boxed milk taste,but fresh milk is now available.
Both companies have webb sites in English which may help.
As for cheese supermarkets will give you samples to try if you ask,or take it out frozen in your hold luggage.