There are a lot of manga on showbiz (including singer, dancer, actor/actress, dubber, mangaka), sports, detective, cooking (I still recommend Yakitate!! Japan though), period-based profession (like shinsengumi) or school clubs, so I omit those. They are more common, but there are a lot of interesting clubs, including uncommon sports. If you're interested, maybe I'll recommend some.
I think I've read manga in a lot more topics, let me re-add some later.