Indexing the application by search engines. Is there an alternative to _escaped_fragment_ who doesn't have the option to use parameters in the URL?

Question

Search Engine Optimization

There is a website that contains many articles on one page. This is done so that the page gets into the cache using the HTML5 manifest. The problem is that, using a search engine, it is very difficult to find the necessary information due to one-page. While trying to find a solution, I found information about _escaped_fragment_ being a URL parameter.
Unfortunately, the page is hosted by github, which only allows you to host static content, so using parameters is not possible.
I can generate many separate search engine pages, but I can't use _escaped_fragment_. Is there any way out?
There is an idea to use an automatic redirect on individual pages, but I don’t understand how the search engine will react to this.