Our friends at feddit.de have created a live search tool for Lemmy communities! Type in your search term and the community browser will show you a list of communities sorted by total number of posts (descending). This will help ensure that you pick the most active variant of a particular community.

The search results will give you three major blocks of information.

1. The direct URL and a copy URL button. Use this URL in the community search box.
2. The name of the community. You can click this to read the community sidebar and see if the community is right for you.
3. Vital statistics (instance URL, post, comment, and subscriber counts).

So far it doesn't look like it will show you any kbin magazines (what kbin calls a community). Rest assured you can still search for and find kbin magazines the old fashioned way -- just not with browse.feddit.de.