Try Auto-Tune® Reason for free: https://www.reasonstudios.com/shop/rack-extension/auto-tune-reason/
Adding Auto-Tune® to your Reason rack opens up to entirely new uses for this era-defining effect. Get creative and unique results by combining Auto-Tune® Reason with your other Reason devices.
Since its introduction, Auto-Tune® has become an indispensable part of modern vocal production. Auto-Tune® Reason delivers the essential Auto-Tune® features, plus Reason-exclusive features for more creative workflows, all with a simple and intuitive interface.
Retune Speed and Humanize controls let you dial in the sound you’re looking for, from subtle pitch correction to the most extreme Auto-Tune® Effect. And low-latency processing lets you perform through Auto-Tune Reason in real-time without any distracting delay.
But as with all things Reason, you can take things much further by combining Auto-Tune® Reason with other Reason devices. To get you started, Auto-Tune® Reason includes a collection of Combinator vocal chain patches for both subtle, mix-ready processing, and inspiring creative effects for every genre of music.