Well, start by asking librarians. They are very knowledgeable and can guide you to the right section. Also, check out bookstores that specialize in foreign or children's books. You might be able to find collections of Swedish children's stories there. And don't forget to look at Scandinavian cultural centers or websites. They often promote and share Swedish children's literature.
You can visit local libraries. They usually have a section dedicated to international children's literature, including Swedish stories. Another way is to search online on e - book platforms. Some of them offer a wide range of Swedish children's tales.