TTS Voice Wizard
TTS Voice Wizard is a free and open-source Speech-to-Text and Text-to-Speech application designed to bring accessibility to VRChat. Although it was made for VRChat, its STT and TTS capabilities can be used anywhere you'd like.
By subscribing to VoiceWizardPro, you gain instant access to a wide variety of popular TTS Voices, eliminating the need to create and manage multiple cloud service accounts.