Bit of a strange one but I'm wondering if Jersey milk (gold top) is readily available where you are. I'm fairly lactose intolerant to the main breed of cow where the majority of dairy milk comes from (Holstein Freisians) but I have pretty much no issue with Jersey milk, which has a type of casein protein called A2, while milk from Holstein Freisians are pretty much all A1.
From a simple google search it seems like Denmark has some Jersey milk production, probably France too given proximity to Jersey but interested to hear from others.