All the supermarkets seems to sell the same brands and I have no idea if any of them are mostly processed in Europe or elsewhere in the world.
Do you have recommendations? I like the ones with a fruity taste more.
This one is my current favorite:
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They claim on the package that they care about sustainability, better working conditions and social engagement.
I love the loose herbal teas from Sonnentor (Austrian company). They are sometimes leaning towards weird esoteric behavior like until about 10 years ago they drew a line through the EAN-Code… But their tea is amazing and they are also participating in economy for the common good.