"easy swedish" is almost an official genre of the language because some government information is available in such easy to read versions (that's what they are called), but the total text amount of it all must be rather small.
Easy Swedish radio news: https://www.sverigesradio.se/grupp/22720
Easy Swedish books: https://www.bokus.com/cgi-bin/product_search.cgi?series=L%E4...