Hi there,
I've completed a project with GSAP + Barba.js before. Here it is: https://hyphenco.com
Here's another project I did that has many scroll-based animations https://www.overlapassociates.com
I can do unconventional animations based on your needs.
Please email me about the details to balapa95@gmai.com
Looking forward to hearing from you,
Bhakti