I was going to say you could add https://nostrarchives.com and https://antiprimal.net as default search relays, but then I opened the site and searched for a random string and it started searching for things in places like https://czas.plus/ and https://dynasty.libretechsystems.xyz/ -- which I just found out are running #pyramid and actually had a bunch of matches for my search.

The world is confusing.