Better version of SearX. A list of SearX and SearXNG instances is available at searx.space
Also meta search engines, but different:
DuckDuckGo
It’s very privacy friendly, but it gets all the search results from Microsoft’s Bing.
Startpage
Basically the same thing but it uses Google results. They are really focused on privacy too, they even are on Mastodon: mastodon.social/
They’re based in the EU (Netherlands) so they are also subject to the GDPR.
Independent:
Brave Search
They recently stopped using Google and Bing and created their own search index. It appears to be privacy friendly, but the company behind Brave is not ideal.
Mojeek
A small privacy focused search engine, that uses its own index. They’re also on Mastodon: mastodon.social/
Kagi
I’ve seen many many people recommend it, but I have never really used it myself. It’s not free, they charge $5/month for 300 searches and $10 for unlimited searches.