Same old. Just follow specific users by copying their full ID (e.g. @Teppic@kbin.social without the space) onto the search on Mastodon and follow as normal.
We should perhaps use hashtags more here because that would would be another way for Mastodon users to find/follow kbin content.
Going the other way to contribute to a kbin magazine from Mastodon, If you want the post to appear in a particular magazine, simply mention it in the post content, for example, "@fediverse@kbin.social" (no space) Note it will appear in the Microblog section.