Good prototype.
To achieve your goal of best products in categories and subcategories, you will need a few things:
* Universal equations that can be applied to all products or major categories of products for what is 'best' durable for long term use, including adjustments for value/price. Have to evaluate for self-repair vs pro repair. Availability and price of spare parts. Account for geographic location.
* To help sell the 'best' recommendation for subcategories of 'best', you could show other products that were close but are not the best. But to help users see 'best' in specific categories (ex. not best durable fridge, but best quietest fridge) you will need many custom filters. Some ideas to copy are the extensive filters on Digikey for say, an alum. electrolytic capacitor: https://www.digikey.com/en/products/filter/aluminum-electrol... or on McMasterCarr for a screw: https://www.mcmaster.com/screws
* A good test of 'best' durable in my mind, is answering the question: Would this product be the one chosen to go with the Mars colony ships? Is it fairly cheap, durable in all environments, easy to repair, easy to make spare parts, lasts a long time, low maintenance, etc?
One other thing I haven't seen anyone tackle is to evaluate 'best' durable via first principles equations and engineering.
Ex of a fridge:
* Define the physics of how the product performs over its life: physics of door opening and effort to lift the door, compressor energy to turn on, vibration life cycles and wear, power converter wear, etc.
* Define theoretical best performance for the product for each use case in fundamental physics.
* Get performance data for real test units.
* OR if testing real units is too expensive and time consuming. Put modeled fake units in a physics simulation engine (like https://docs.unity3d.com/Manual/PhysicsSection.html) and stochastically seed millions of virtual units with minor differences and virtually test to failure.
This would result in a much stronger measure of 'best' durable, that then, the crowd-sourced reviews would, hopefully, reiterate.
* Universal equations that can be applied to all products or major categories of products for what is 'best' durable for long term use, including adjustments for value/price. Have to evaluate for self-repair vs pro repair. Availability and price of spare parts. Account for geographic location.
* To help sell the 'best' recommendation for subcategories of 'best', you could show other products that were close but are not the best. But to help users see 'best' in specific categories (ex. not best durable fridge, but best quietest fridge) you will need many custom filters. Some ideas to copy are the extensive filters on Digikey for say, an alum. electrolytic capacitor: https://www.digikey.com/en/products/filter/aluminum-electrol... or on McMasterCarr for a screw: https://www.mcmaster.com/screws
* A good test of 'best' durable in my mind, is answering the question: Would this product be the one chosen to go with the Mars colony ships? Is it fairly cheap, durable in all environments, easy to repair, easy to make spare parts, lasts a long time, low maintenance, etc?