Need SSG/CMS for Huge Calculator Website (5,000+ Pages)

I’m building a massive calculator website with TONS of pages (10,000+). It’ll have different calculator types, organized into categories like domain/physics/calculator-slug.

I’m good with HTML, CSS, and JavaScript, but React is a bit new to me. I want to make the site static for speed and security, but I also need to control some things dynamically, like:

  • Meta tags
  • Navigation
  • Footer

Could you recommend an SSG or CMS that:

  • Can handle a website this big?
  • Is easy to use, even without a ton of coding knowledge?
  • Lets me manage those dynamic elements easily?
  • Stays fast and stable as the website grows?

I’ve looked at Jekyll and Hugo, but those seem better for blogs. I’m curious about Next.js, Nuxt.js, Gatsby, Eleventy, and Forestry. Anyone have experience with those for calculator-heavy projects?

Thanks for your help, experts!