Well just look at this example:
Just interact with the example below by clicking and holding:
Just use this library to create awesome animation like one given below:
Typeit.js allows creating awesome typing animation in your website. If you want to add typing animation on your website then go for it.
Just look at this cool story of a programmer
Just scroll down this codepen
May be I've missed some other cool libraries, just let me know in the comment section down below. And I can't forget Threejs also.