I use a selfhosted OmniSearch instance. It's a metasearch provider, supplying links from ddg, mojeek, startpage and yahoo.
It's fine. It's mega private and has no built in AI tools, which is what I care most about.
The creator has requested that their code not be mirrored to any proprietary platforms. It is availible at https://git.bwaaa.monster/
Simple to configure and if you desire to rebrand or restyle it, it's as simple as changing the HTML and CSS.