I did some quick search, and found few ones. You can search for similar ones -- these are beaten topics and have been discussed, blogged, done in length.

- More Meaningful Typography from List Apart, https://alistapart.com/article/more-meaningful-typography/

- Responsive typography with Modular Scale: Create meaningful proportions in your design using SASS, https://www.bugsnag.com/blog/responsive-typography-with-modu...

- How to Establish a Modular Typographic Scale, https://webdesign.tutsplus.com/articles/how-to-establish-a-m...

- https://www.modularscale.com is a tool to define your scale

- The Cicada Principle, revisited with CSS variables from an industry Design + Engineering guru/goddess, https://lea.verou.me/2020/07/the-cicada-principle-revisited-...

- https://utopia.fyi/blog have some good articles, more modern and relevant to the new CSS such as Clamps.

I had fun with Cicada - beautiful background patterns, which you yourself cannot predict. I was looking for my presentation on "Design with Mathematics, and Patterns" (or something in that line) but I think I may have lost it like many other open source files from before Github.

That was very helpful, thank you!