Try entering the words "speaking English" into the search above. Your results will be very large but try narrowing the search to 'Books' only. Your results will include physical books and eBooks that can be accessed with your login.
If you need any assistance with navigating the results, library staff will be happy to help you find what you need.
A few other useful keywords you might use include:
Speaking with a Purpose by 
TOEFL IBT Prep with Audio/Listening Tracks 2022 by