Are there domains suited for e-commerce or product sites?

Finding them

E-commerce isn't a separate product tier, and it isn't reliably a filter either: category is only published where a domain's archive record makes its subject matter clear, so browsing by category will miss most of what would suit you. Look instead at the sources linking to a domain, and at its keyword themes where present. A domain linked from shopping guides or product-review contexts suits a retail site better than a higher-scoring one with unrelated history.

Why history matters more in competitive categories

Product and category pages compete against retailers with years of accumulated authority. A domain with genuine aged history and real referring domains gives a new store something that's hard to build quickly from scratch: a track record.

What to check for this use case

Weigh topical relevance alongside Revised Score, not instead of it. Check the archive record too. A domain that was a real site for years is a better foundation for a store than one with thin coverage and a strong link count.

It won't do the work on its own

A domain is a head start on authority, not a substitute for product pages that deserve to rank. Treat it as one input alongside the fundamentals.