I personally find the search results from Kagi to be superior to Google/DDG/etc, beyond just not having ads or sponsored content. Before switching to Kagi, I had started to feel like a lot of the front page results from Google were just sites that had managed to maximize their SEO but not actually have much valuable content. That hasn’t seemed to be the case with Kagi. I generally find that the results from them are a lot more informative.
Of course that’s highly subjective, so I think it’s worth trying out their free tier to see if the potential improvement in search result quality is something you notice and find valuable enough to spend money on.