You can try the 3 methods: keyword, knn, and hybrid on a collection in the AI domain here https://search.zeta-alpha.com/ https://search.zeta-alpha.com/. YMMV so

You can try the 3 methods: keyword, knn, and hybrid on a collection in the AI domain here https://search.zeta-alpha.com/ https://search.zeta-alpha.com/. YMMV sometimes knn has more interesting results, sometimes keyword is closer to what you wanted. Hybrid is sometimes also a good middle ground. But it fails when one of the retrievers has very bad results (because it will interleave them)