You don’t have to read long stories for Extensive Reading. Lots of interesting short readings on a variety of topics of interest to you is also a great way to improve your reading ability and your vocabulary. Here are some useful sites.
This site has over 1000 short stories. You can listen to them and take quizzes on them, too. You can register on the site and it will keep track of your current reading level and your progress. Visit https://er-central.com
British Council “LearnEnglish” websites
If you go to “Study break/ Graded Reading” on the Teens site, you can find many interesting short stories. Each story is written at three levels, so you can read the easy one first, then the same story at the ‘intermediate’ level, and then at the ‘advanced’ level. You can learn a lot of new vocabulary while enjoying the stories.
This site offers information at three levels, Beginning, Intermediate and Advanced. The are news stories with both video and text for you to read. Click on “Video” to see a list of the daily news topics. “Audio” isn’t just sound! There are stories from famous American authors with the full text in addition to the audio, so there is lot’s here for both reading and listening practice!
This site has a series of animated short stories to help children learn English with their parents. Each story has a downloadable transcript and an activities pack to help children explore and use the language. But you can use them by yourself, too! The Six-Minute English series, for Intermediate level, is a great way to pick up some new vocabulary.