How to make an audio that sounds like Spamtopia/Oscar from Smiling friends?

idk if there is a plugin about it, but i just wanna make something that sounds like the characters from Smiling Friends, in that spamtopia episode: https://www.youtube.com/watch?v=jeFZSnA7lLc

no idea how to make it

BitSpeek is similar … https://youtu.be/JrkQdNQOC2k&t=87

or SAM if you can accept text to speech … SAM: Software Automatic Mouth