Kbin.social is (at least since I last checked like 30 minutes ago) federating, they removed the cloudflare ddos protection that was making federation impossible a few days ago. If you take a look at the kbin’s all page you’ll see plenty of material federating from lemmy.world and us over here on beehaw. You should be able to just search for kbin magazines with the regular Lemmy search, but I’ve found that to be inconsistent.
No prob! I’d actually recommend making an account on one of the kbin instances if you’re curious at all about it. It works a little differently and has some unique design goals which gives you a bit of a preview of how the fediverse might move forward into the future and beyond the web 2.0 that we all know. Interesting things are ahead, it seems :).