Yes, there are some ways to potentially make money online by reading books, including:

• Writing book reviews – Websites like BookBrowse, OnlineBookClub, BookReviews, and more pay freelance writers to read and review books on their sites. Pay is usually around $3-20 per review.
• Creating book summaries – Services like Blinkist and Briefbox pay for short text or audio summaries of non-fiction books. Summarizers get royalties per unit sold.
• Narrating audiobooks – Sites like ACX connect authors to narrators to produce audiobooks. Narrators earn based on audition, length of book, and sales.
• Enter book giveaways – Book promotion sites offer free books in exchange for honest reviews. You can sometimes sell the free books after reading them.
• Participating in reading apps – Apps like Squid and Anthropic pay you tokens for reading, taking quizzes, etc, which can be converted to gift cards.
• Launching a book blog/channel – Building an audience around book reviews, summaries or commentary opens options to monetize through ads, affiliates, etc.
• Testing books pre-release – Some publishers recruit readers to provide feedback on pre-release books, offering free copies and sometimes payments.

The income potential depends on your audience reach and time commitment. For most, it provides supplementary, not full-time income. But a great fit if you love reading.