Lemmy post relevancy

A few ways I've found communities that interest me:

• Community promotion communities such as https://lemmy.ca/c/communitypromo provide pointers to topics of interest.
• A good Lemmy client goes a long way toward facilitating content discovery; I'm a Voyager user, and it supports sorting Home (subscribed) and All (unsubscribed) post feeds in various ways including New, Active, Scaled, Controversial, etc.
• When I was new to Lemmy, I used Voyager's subreddit migration tool to match communities with my interests (see https://vger.app/settings/reddit-migrate ) -- I believe Artic and a number of other clients have similar functionality.
• Just browsing the All feed has helped me find communities (and compile a list of things to block!)