@VeSpectagles I wouldn't make myself dependent on whether the *key instance is by the same admins as the lemmy instance. The *key softwares are generally recommended if you want a lot of functions and a modern interface. I particularly like the Antennas / News Pickers, with which the content can be structured very well according to your own search terms (a kind of topic-specific timelines). The interaction with Lemmy also works well.
There is an instance list for #Sharkey and #Iceshrimp instances here