This site keeps track of all Chia Nodes participating on the Chia Network.
Each node has been verified to be listenting on port 8444.

There are currently 1155 known online nodes.

Here are 20 random nodes to get you started:

82.36.39.138
146.52.11.127
86.101.139.66
84.106.69.221
194.244.9.39
217.112.160.83
73.164.88.229
222.173.213.178
152.36.154.35
174.114.209.124
193.95.249.3
40.112.129.19
27.136.226.133
47.180.223.143
194.42.111.108
73.35.243.98
140.228.250.129
178.83.50.126
135.135.188.153
140.177.155.190

To add 20 random nodes to your Chia client, run the following commands:
Linux Terminal:
curl https://ChiaNodes.com | grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | while read line; do timeout 2s chia peer full_node -a $line:8444 ;done

Windows Powershell:
Invoke-WebRequest -Uri 'https://ChiaNodes.com' | Select-String -Pattern '\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b' -AllMatches | %{ $_.Matches } | %{ $_.Value } | %{ Start-Sleep -Seconds 2; chia peer full_node -a $_":8444" }