Although it does seem to be very slow to respond, https://voat.co/ seemed to have stepped in as a replacement at the last big upheaval. They seem to constantly have troubles staying up though.
They certainly seem to have momentum, despite having trouble handling the traffic. It's a pity that as it stands it's still pretty much a copy though, an alternative to reddit doesn't have to be, and probably shouldn't be, a 1:1 copy.
If you're looking for something different yet similar, I run valME.io which has a very different business model. And because of the business model, it will have significantly less spam and other undesirable content. But the concept it's not for everyone.
