No, not really as they best way would be making it totally private.
Edit: I see you edited the title. You might be able to slow down LLM training. However, your content is such a small percentage in the whole that I doubt it would matter.
The simplest way might be to add a artificial delay to the page load. You could create a simple loading page that is just long enough to cause bots to move on. However, this will completely break search indexing assuming that this method works.