Try uBlacklist, it's like uBlock, but for search results. https://addons.mozilla.org/en-US/firefox/addon/ublacklist/ https://chromewebstore.google.com/detail/ublacklist/pncfbmia... You can sync the settings and your personal blocklist to either Dropbox or Google Drive. It also has the ability to subscribe to blocklists. Mind, you need to manually turn on search engines and subscribe to lists. The uBlacklist subscript…
This is a feature of Kagi already. You can promote or blacklist domains in your search results.
And it seems like they also have a 1000 domain limit?