Not sure if it is dead just yet but novaexchange has some working nodes to get the wallet back in sync again in case it helps anyone dropping the list here

addnode=103.233.194.202:3991
addnode=164.132.164.49:3991
addnode=174.138.67.7:3991
addnode=185.173.206.30:3991
addnode=198.54.113.29:3991
addnode=5.240.11.137:3991
addnode=51.15.162.24:3991
addnode=93.115.61.74:3991