Consulting on elasticsearch recommendation/similarity engine

I need to get in contact with a very experienced elastic search solutions architect who can help us sketch how we can best use elastic to make product recommendations for our inventory. We already have elastic setup and running with data, but we are unsure about what is the better approach to take for our use case where we wanna recommend similar products (cars) based on the users search intend which can contain a very great variety of search criteria such as e.g. max price, color, fuel type, mileage range, year, make, model, specific equipment etc. etc.