Best Free Text to Speech tool, convert text into human sounding voice

Here are the two best free text to speech tools with examples of how they work and reasons you'll want to know how to use these, especially if you create videos for YouTube.  Resources:
https://balabolka.en.softonic.com/
https://console.aws.amazon.com/polly/...
Mango Blues - https://amzn.to/2xAwdIq