>What are some good text to speech programs?
https://15.ai/ seems to be the best out at the moment. You have to choose from a finite amount of character voices from popular media, but the admin is open to user contributions (see https://15.ai/contribute).
Also, admin-san enjoys taking the site down for months at a time while he tweaks the algorithm behind the scenes, so prepare to get used to that if you get into the site at all.