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 1097 known online nodes.

Here are 20 random nodes to get you started:

73.142.99.87
94.32.112.48
220.134.121.237
178.151.79.169
217.76.119.34
213.32.25.71
63.225.116.202
96.41.20.26
76.214.233.210
78.83.50.115
207.228.216.6
109.197.243.2
206.74.44.117
207.228.219.2
77.20.167.168
85.187.184.248
219.89.85.232
76.22.30.52
114.35.53.225
114.230.221.60

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" }