This year has been extraordinary for Kagi ( https://kagi.com ).
Kagi is a paid alternative to ad-supported search engines like Google and DuckDuckGo. It has recently revised its pricing model, reducing the cost for a plan with unmetered searches from $25 per month to $10.
Kagi boasts the following (and more) features:
Blocking or boosting specific domains in your search results
"Lenses", which are individual setting profiles (e.g. region locks, domain whitelists) that can be applied to search queries
All of the Bangs that DuckDuckGo has (e.g. type "!yt" in front of your query to immediately search on youtube.com)
Universal Summarizer, which works with any website, PDF document, YouTube video and more
This blog post goes into full details about Kagi's capabilities.
So I actually watched a talk by the person who coinded "enshittification", Cory Doctorow, recently, and I have changed my perspective about Kagi. I no longer think Kagi is doomed to enshittify.
Enshittification requires advertisers. As long as Kagi finances itself with money that does not come from advertisers, it will not enshittify.
This does not mean that it's not problematic that their code is closed-source.
EDIT ENDS HERE
I like what I hear about the user experience, but there are many problems I see with the service.
For one, it's based in the USA, so it is legally subject to the insane, antidemocratic, and awful state surveillance there.
It is also a corporation, so it is subject to enshittification. Currently, it is giving users loads of stuff so that users use it, but sooner or later investors will want their money back and Kagi will enshittify.
Finally, these two problems would be mitigated by open-sourcing and making libre their software. With that, alternatives in more sensible legislatures could open. Users could migrate to instances that are still libre and not enshittified.
It is really unfortunate that Kagi is doing so many things well while doing some fundamental things terribly. As it stands, Kagi is doomed to enshittify.
Easy. Kagi cares about the quality of their product giving you the customer good results. Their product is a search engine. Google doesn't care to make their search engine better currently. Their product is ad placement and sales. You are not their customer.
Kagi already exceeds Google at being a search engine, at this time.
There is no law in the requiring data logging in the US, nor is it required to comply with FBI security data requests. and beat out gag orders over the subject. It is also deemed a violation of the first amendment.