It is worth taking care of road safety (especially in winter), which is why I decided not to save on tires. I have read a lot of reviews on the internet, but really in addition to the ratings from online reviews, I like two brands (due to the blue color used in their logotype): Goodyear and Michelin. Michelinman is a bit fat so I chose Goodyear 🙃
I bought new tires from Oponeo.pl. A friend gave me an email to one of the women who sells tires on this online-shop, so I received a small discount.
The final price (after negotiations): 2 240 PLN (560 PLN / piece)