>>307449143
Here's another demo of ircam trax I recorded way back, using a podcast as input:

https://streamable.com/nhwmlm

Another program to mess with is antares throat which lets you model the entire vocal tract. I never got far into it but would provide even more flexibility, if you want to model your custom anime girl throat:

https://streamable.com/677q0x

Antares also has a few other VSTs, including autotune itself. Annoying to find a crack though. I don't have a good torrent for it handy, and all the latest autotune versions are full dongle drm, so no recent cracks iirc