Search Google for "text to speech" or "tts reader" for more options.
Because of known limitations with DRM-protected content (such as Adobe Digital Editions), it's recommended to download eBook chapters from EBSCO eBooks and Ebook Central, then open the downloaded chapters with a text-to-speech tool or copy the text from the viewer into a text-to-speech tool.
More information can be found at EBSCO eBook Accessibility User Guide and FAQs and Accessibility Statement: Ebook Central
To use a screen reader without the download/upload procedure in Ebook Central:
Ebooks from Springer, Project Muse, JSTOR, Oxford, Cambridge, and Taylor & Francis are DRM-free which means you can download them without any restrictions. You may upload or paste eBooks from these publishers into a screen reader.