Another strong contender is PlayHT, which has a library of more than 600 ultra-realistic AI voices. It supports multiple languages and accents, and offers options for custom pronunciations, voice inflections and real-time voice cloning. That makes it good for video voiceovers, audio publishing and gaming. PlayHT has ethics and safety protections in its free version and extensive support resources.
For a productivity tool, Audioread is worth a look. It turns written documents into audio, and offers ultra-realistic voices for listening for hours. Audioread is available as a web app, browser extension and mobile app so you can listen to articles, emails and other documents while doing other tasks. It also generates a private podcast RSS feed so you can listen with your favorite podcast apps.
Beepbooply is another powerful option, with more than 900 voices in 80 languages. It lets you fine tune speed, pitch and volume, so it's good for voiceovers, podcast narration and customer support. Beepbooply offers flexible pricing tiers and a free trial, so you can use it for personal or commercial purposes.