Gregory's ServerI feel the question of "what else is there" depends on what you're actually looking for.
If you're just looking to use a large index while minimizing the data you're sending back, then DuckDuckGo still works for that. DuckDuckGo and Qwant use Bing's index, while Startpage uses Google's index, and any of those would work for that purpose.
If you're looking for a independent index for general use, Mojeek probably has the largest index that is not Google, Bing, or Yandex.
@rysiek
Now if you're trying to avoid search engines that are into LLMs, then your options are going to depend on whether the index provider matters.
If only the service you are directly using matters, then you have plenty of options as there's seemingly endless search engines using Google or Bing (especially Bing).
If where the index comes from matters then you're pretty much out of large mainstream indexes and into small independent ones and a major change in search habits.