If you want a reliable vocoder VST, consider these:
The Akai DC Vocoder VST is a software recreation of the original Akai DC Vocoder hardware unit. It's designed to bring the classic vocoder sound to modern digital audio workstations (DAWs). akai dc vocoder vst download repack
A unique "gender-bend" feature allows users to shift formants, making voices sound more masculine or feminine without necessarily changing the pitch. If you want a reliable vocoder VST, consider
(Free): Emulates vintage 80s hardware with a built-in synth and 11 bands. It is widely considered the gold standard for free vocoding. akai dc vocoder vst download repack
It features a high-quality 50-band filter, which provides granular control for shaping vocal characteristics.