Top 20 NuGet logging Packages

Logging Framework for service oriented systems.
Adds Logging adapters for Application Insights when using the common Core Functionality.
A logging adaptor library
log4net logger provider implementation for Microsoft.Extensions.Logging.
Plisky Diagnostics Library - featuring Bilge, offering comprehensive trace and error handling facilities to applications. See this link https://itsey.github.io/ for documentation and help.
The Semantic Logging Application Block provides a set of destinations to persist events published by a subclass of EventSource, This add-on packages adds support to persisting log entries into rolling text files and simple text files. This library contains a class library that targets .Net Core 2.0 ...
Traceyi is an asynchronous logging library
This library helps with logging tasks.
Adds additional logging capabilities to the System.Console
Simple logging and enhancements for existing logging frameworks.
Provides ASP.NET Core middleware and other extensions for request and/response logging.
Serialize/deserialize log entries with MessagePack. Exceptionless is a cloud based error reporting service that sends your exceptions to https://exceptionless.com and provides aggregated views and analytics.
The ConfigurEngine.Logging package provides a simple extension method to simplify ASP.NET Core's default logging infrastructure.
The ConfigurEngine package provides a handful of simple extension methods to improve ASP.NET Core's default configuration infrastructure.
A simple multi-process file-logger that use a Queue and has simple syntax.
Logs and reports log messages that have not been handled during UnitTests.
Beginor.AppFx.Logging.Log4net
Enriches Serilog events with information from logger properties that was enriched earlier.
.Net Standard common logging abstractions to make logging calls asynchronous in an application. The abstration allows for any logging library (Log4Net and etc) to be used as the library abstractions will "spool" the log entries.
Giraffe plugin to use Serilog as the logger for your application