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 1121 known online nodes.

Here are 20 random nodes to get you started:

77.51.188.201
222.173.213.178
80.77.36.7
72.177.9.198
64.67.12.105
173.89.85.219
84.39.182.124
47.200.174.61
221.124.67.71
185.130.53.44
109.183.113.178
79.140.18.132
216.145.84.25
174.166.184.87
213.222.148.86
5.189.82.164
125.229.181.32
188.37.173.73
96.29.46.23
77.89.83.47

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" }