@nathandavis As others have said r/parentsofmultiples has been fairly active in the past that I've seen.
Edit: I mainly lurk here as I relate in a "one pregnancy and done" sense, but parenting two children is different than one. From what I've gathered by comparing my experience with things I've read on this sub. We are in a very awkward spot as OAD can have a lot of sensitivity surrounding it, and I feel like I as a twin mom am on the "outer ring". So participating much on here makes me wary of "complaining in" when I should "complain out" to the outer rings.