You can add tags to pages to break caches in groups whenever you update relevant parts of those pages.

Provide the tags with headers in your response:

Cache-Tag: tag1,tag2,tag3
or
Netlify-Cache-Tag: tag1,tag2,tag3

And break them using Netlify's library, whenever you want:

// purge a cache tag passed by query parameter across all deploys of a site
// no need to specify site ID as it is passed automatically by the purgeCache helper 

import { purgeCache } from "@netlify/functions"

module.exports.handler = async (event, context) => {
  const token = context.clientContext.custom.purge_api_token;

  await purgeCache({
    tags: ["tag1", "tag2"],
    token
  })

  return {
    body: "Purged!",
    statusCode: 202
  }
}