Mojeek is okay, but I think I'd struggle to use it as my primary search. I do include it in my personal metasearch results though, and find it worth paying for their API access (at my usage it's only about $20/year). If a page shows up in both Brave & Mojeek, it's probably a good one.
I thought I'd tried Yacy, but apparently not - it's a distributed search.
SearX is by asciimoo, the same person who has moved on to making Hister. asciimoo just posted about it here a few minutes ago: https://news.ycombinator.com/item?id=49159436
I feel like Seirdy has the definitive list of search engines, though the list is from 2021:
https://seirdy.one/posts/2021/03/10/search-engines-with-own-...