[rockemsockem]

Honestly I haven't found one that I'd call really usable. That's why I'm building it myself. There are a lot of applications that are fine to listen to for like super short text (a few sentences), but for any long-form prose it gets intolerable IMO. And that's from someone who has listened to lots of intolerable audio from my own system.

EDIT: I'll also add that although there are *many* TTS apps, the true diversity is far less because most of these services are using Amazon Polly, Azure, or GCP's equivalents.