This just uses http://scrollerjs.com and https://d3js.org.

Any tool that combines these things is by necessity going to limit your creativity with them. Using the tools themselves is your best bet.

https://idyll-lang.org/ is built for this. You'll still have to write code for your custom graphics but it will help you get things up and running quickly.

Check out https://mathisonian.github.io/idyll/scaffolding-interactives... (scroll example is towards the bottom)