Clothing store, around 1,500 products, filters for size, color, brand, price, material and so on. Right now every filter combination generates a crawlable URL, and GSC shows about 90k “discovered – currently not indexed” URLs, nearly all facets.
Some combos actually have search demand, like “black linen shirts” or brand + category. Most are useless (size M + price 20-40 + blue).
How do you decide which facets get indexable pages? Keyword volume threshold, manually picked list, something else? And how do you handle the rest, noindex, canonical, or blocking?