Have you tried Kagi? It's subscription and doesn't really do what you suggest, but it's results are good, you can prioritise and block specific sites and they have a project called Kagi Small Web: https://blog.kagi.com/small-web
Been trying Kagi for a few months now. Sadly, I don't notice much difference from Google.
For example, this past weekend I tried to work on learning some WebGPU stuff. The search results were filled with WebGL, WGPU, Three.js, Babylon, etc. stuff. The page might have contained "WebGPU" in a sidebar or something similar, but weren't about WebGPU at all.
