"Thread" is a good keyword to include to find discussions, even though it's a bit overloaded.

Eg.

'good cheap mountain bike' -> 10 results out of the first 10 are commercial spam and listicles.

'thread good cheap mountain bike' -> 5 human discussions on entry-level MBs, 1 link to a MB forum home page (not a specific thread), 2 commercial spam, 1 paywalled magazine article testing MBs, and 1 online shop product page for a MB that happened to mention a "73mm Threaded BB shell" multiple times.