I just came across this: Scholastic ACTION magazine. Appears to be USA only, but supposedly the digital version allows for different reading levels. https://action.scholastic.com/ and here is a sample magazine (again, the print copy may only be for USA): https://action.scholastic.com/etc/designs/scholastic/classroom-magazines-migration/clientlibs/reader/index.html?id=40c00611-0bc9-497f-ac65-bcead46707fd