You can try these as addnodes,  I'm assuming you have a current wallet and firewall is not in the way...

zetacoind getpeerinfo | grep 'addr"'
        "addr" : "119.253.64.38:37984",
        "addr" : "144.76.239.66:49649",
        "addr" : "104.131.29.249:17333",
        "addr" : "72.46.152.250:17333",
        "addr" : "91.121.173.156:38991",
        "addr" : "144.76.91.109:17333",
        "addr" : "108.61.169.107:17333",
        "addr" : "188.165.254.191:44915",
        "addr" : "54.213.205.183:54809",
        "addr" : "199.68.199.33:50569",
        "addr" : "24.253.79.233:55146",
        "addr" : "204.11.237.233:55091",
        "addr" : "107.155.108.149:45416",
        "addr" : "37.187.155.143:17333",
        "addr" : "107.155.108.79:17333",
        "addr" : "88.110.13.65:55580",
        "addr" : "148.251.126.241:34085",
        "addr" : "188.226.155.94:17333",
        "addr" : "173.74.32.109:51730",
        "addr" : "81.99.241.164:52512",
        "addr" : "86.18.76.197:51249",
        "addr" : "71.245.177.178:52809",
        "addr" : "86.49.35.254:60876",
        "addr" : "89.92.55.165:53614",
        "addr" : "99.113.26.253:50454",
        "addr" : "50.162.235.186:46184",
        "addr" : "178.63.47.207:60054",
        "addr" : "104.237.157.164:56966",
        "addr" : "105.236.76.224:19187",