I personally like ibm tts slightly more than Google although it is more expensive. I think Google, but definitely other startups also allow you to train the model to be closer to your voice. Since you might have many recordings of yourself before this, could be cool. Comment if you can't find it and I can look

It's none of my business how long term it is, but if it is long term look into stenography, especially open source opensteno and plover. Old talk but https://youtu.be/Wpv-Qb-dB6g

It's what court reporters use to transcribe at the speed of text but for you it could mean giving text into a tts software at the speed of normal talking. I've only tried it briefly but if you take the time to learn it, you can comfortably get to normal speech speeds with no hang fatigue. It's one of the reasons opensteno is so nice bc it also has cheap steno keyboards which are normally thousands and locked behind industry. Comment if you want more links! I can add when I'm by my computer