-odd families that do already have one, just put "see ..." instead of "main article..." and a summary.  For the most important few dozen of the remaining families, create articles and do the same.  Leave the lower-priority members here without their own family articles.  "Priority" is in the eye of the individual editor, but I'd say do as many as you need to get the article down well below 200KB.
Also: Splitting the list into 2 or 3 sections by alphabet works well.  See the split of Wikipedia:List of missing journals for an example of how to do this while preserving a common header.  One thing this article may have to worry about that Wikipedia:List of missing journals didn't is incoming links:  If you split it, there will be a few dozen redirected incoming links.  /(talk)/(contribs)/(e-mail) 02:20