Obviously this is THE best forum but what other ones do you visit? It seems there aren't a lot 'active" anymore?
I visit them all. I’m obsessed with this site. Locked and denied 24/7 and constantly on edge I need the distraction from jumping my wife, well …24/7!!
I started out on orgasmdenial.com there is still a bit of activity there but the forum is very old, I put a lot of content into there, then they lost their database and it never really recovered. Almost exclusively here now.
I would say FetLife.com (many different fetishes) and forum.boundanna.net because of nice DIY section. Both have chastity sections but nothing what can be compared to chastitymansion's community
This is the only one I've found that is well laid out and has forums that fit my interest. I do stop into here once and a while. https://www.evolvingyourman.com/
I have a somewhat neglected blog aggregate that lists a handful of forums in one of the sidebars. https://keyheld.blogspot.com/
There are some very active discord servers about chastity and FLRs. But be warned, there is also a very high presence of FinDommes there as well.