Here's a few for entry via debug window:

addnode 100.34.15.63:11556 add
addnode 94.61.193.156:11556 add
addnode 159.65.65.206:11556 add
addnode 187.163.195.24:11556 add
addnode 13.57.31.176:11556 add
addnode 144.76.174.21:11556 add


Or for the flappycoin.conf file:

addnode=100.34.15.63:11556
addnode=94.61.193.156:11556
addnode=159.65.65.206:11556
addnode=187.163.195.24:11556
addnode=13.57.31.176:11556
addnode=144.76.174.21:11556


But if you're not picking up nodes, it's more likely that you're on the wrong chain.  The current blockheight should be 1142352, but use one the explorers on page 1 for the height in real-time.