I've been using tsu.co for a while and actually find it to be an interesting and pretty neat alternative social platform. There's not much chip activity there yet but I have a public group pending approval and have tried to friend/follow all the people I know from related fields.
Join up using my short code if it asks for it: https://www.tsu.co/AbandonedOnFire
If it doesn't ask for a short code then friend request me @AbandonedOnFire