The most promising general reddit equivalent I've seen so far is tildes.net. It's the first time I've seen a fork of the reddit model with some actually fresh ideas. However, like all of the hundreds of alternatived, this site is far below the critical mass required to make browsing it regularly worthwhile.

All that it needs is for reddit to commit suicide just like digg chose to.

Would you have an invite to send to try the alpha?

Reddit : Usenet :: Slack : IRC

There will be other places for you to migrate to, as there have been for decades, if not an entire generation.

Reddit has always been some new thing that the kids use. Slack will be dying soon enough too.