If you need a Windows-native GUI, Kiwi Free is good for testing. For production, consider Graylog running on a VM.
Kiwi Syslog Server NG offers fully functional trial for 14 days. SolarWinds Kiwi Syslog Server NG | SolarWinds kiwi syslog server free license key top
: Users can view messages in up to 10 filtered windows simultaneously. If you need a Windows-native GUI, Kiwi Free