Getting only relevant supermarket offers

Here in Germany, supermarkets have weekly offers and since day one they publish them by sharing free newspapers weekly through the letter box. As the prices are increasing a lot, I see it as pretty effective and useful when buying the groceries you use regularly only when they are offered with a discount. The young generation is not looking into those newspapers anymore, so I thought it would be nice to receive a weekly email/whatsapp after subscribing and selecting the usual/liked groceries to get notified when and where to buy the product. The problem is, for the first iteration I would have to consume an API of a company who already digitized the local newspapers. I'm not sure if this is a good source.
I'm happy to hear your opinion about the idea in general and the fact of scraping the data from an existing website.