Here is an overview: https://www.inferless.com/learn/comparing-different-text-to-...

Also keep in mind the processing time. The ^ article above used a NVIDIA L4 with 24-GB VRAM. Sopro claims 7.5 second processing time on CPU for 30 seconds of audio!

If you want to get real good quality TTS, you should check out elevenlabs.io

Different tools for different goals.