If you're sad RARBG closed, give the qbitorrent search a try.
I searched for ages for a replacement of something like torrentz, and the rarbg drop made me start the search again. I ended up trying the included search in qbittorrent, and I'm very happy with the results, it scans many public trackers, and I have always found what I wanted.
To be clear, qbittorrent is a desktop app for linux/windows/mac, that has a panel where you can search for torrents:
Exactly once the plugins installed, it is also the best way I have found to look for torrents. The Best feature is that it will put the Higher sources of the Search, Cross site on top.
in the search page of qbittorrent (view > search engine, if not visible. it should be a tab/button just below the top toolbar next to 'transfers'), in the bottom right corner should be a "search plugins..." button. clicking "check for updates" autopopulated several for me, otherwise click "install a new one" after manually downloading any from this page