Hey, we’re working on MatterRank which is pretty similar to this but currently works on web search. (e.g. I want to prioritize results that talk about X and have Y bias and I want to deprioritize those that are trying to sell me something). Feel free to try it out at https://matterrank.ai

Would also be interested in hearing more about what you’re envisioning for your use case. Are you thinking a browser extension that acts on sites you’re already on, or some sort of shopping aggregator that lets you do this, or something else entirely?