You can buy pretty much any swaybar and then just get a subframe brace. I think there are some companies that sell the two together as a kit, but you don't have to buy them that way.

I remember reading somewhere that 96-00 Civics aren't as susceptable to rear subframe problems if a swaybar is used with stiffer springs & shocks, which seems to make sense, but I've never seen anything definite.