How can I search for Helldivers content on YouTube without Helldivers 2 being every result?

Your best bet is probably adding a “-2” on the search, but it’s still gonna be a struggle

Another way would be to use google to search, and add “before:year” on your query to only get results published before the specified year.

EDIT: I actually completely forgot but you can use search filters on YouTube and I believe there’s a cutoff date somewhere, might be worth looking into.