I have created a mod The TikTok Parable! It's the most epic mod ever created for The Stanley Parable that replaces the narrator with the Female TikTok TTS voice.
Note that this mod is only for The Stanley Parable (2013), and not for The Stanley Parable: Ultra Deluxe. I do not have enough Unity modding knowledge to replace audio files (and extract subtitles because the TikTok voices are auto-generated from them). If anybody wants to make the mod for Ultra Deluxe, feel free to do so.
This mod is inspired by Portal: TikTok Edition
Enjoy the new narrator voices!