log4net - log4net is a tool to help the programmer output log statements to a variety of output targets.
Sejil - Capture, view and filter your ASP.net core log events right from your app
Serilog - Backend Development and Utilities
Logmatic - Logmatic is a log centralization, analytics & visualization platform to improve software & business performance.
AWS CloudTrail - AWS CloudTrail is a web service that records AWS API calls for your account and delivers log files to you.
LOGBack - Logging framework