Text in various formats: https://libgen.li/ https://libgen.li/ or https://www.gutenberg.org/ https://www.gutenberg.org/ Audio books: https://librivox.org/ http

Text in various formats: https://libgen.li/ https://libgen.li/ or https://www.gutenberg.org/ https://www.gutenberg.org/ Audio books: https://librivox.org/ https://librivox.org/ Libgen like Project Gutenberg often has poor formatting on eBooks. Librivox recordings are donated by volunteers. A single book might have multiple readers. Not ideal but you get what you pay for. Audible also has some classics for free, with subscription.