Comparing the Reliability of Clay's Lookalike Companies Feature vs Ocean.io and Discolike for TAM Building

Hey all, I'm building a list of our TAM and have been using Clay's native "Lookalike companies" feature in the "Find companies" action. Any thoughts on how reliable this is versus something like Ocean.io or discolike? Curious if the lookalikes from those tools are significantly better than Clay's. I'm building a pretty large list and using AI to verify ICP fit (100 - 1000 frontline employees and provides specific services), so I would rather get more coverage, even if that means more false positives