Top 20 NuGet utility Packages

Used to monitor when a user views a thread to provide a trigger for achievements
A collection of custom rules and triggers
Provides extensions to modify link targets in user-generated content
Integration with HubSpot
This package provides a datastore for accessing the SQL server.
Many utilities like: enumeration, hash, json (extension newtonsoft), regex, signature, string, uri, dictionary, etc
Enables a list of all community groups to be exported to a CSV file
A collection of utility C# extension methods.
The robbiblubber.org SQL Interpreter Library implements support for intergation with SQL Workspace.
Class library for performing advanced operations with types, dynamic objects, expressions, and reflection.
Provides semantic logger middleware for AspNetCore.
Smdn.dll, fundamental utility and extension library
Provides logging and performance tools via AOP.
Library that provides extension and helper methods of all kinds.
TeGun (NuGet reversed) is a simple, yet handy cross-platform(.netcore) commandline-utility for creating nuget packages (nupkg) from a bunch of ordinary, unpackaged assemblies.
The tiny component for generating .EPUB document on .NET
General utilities and helpers for building ASP.NET Core WEB API
MLEM Library for Extending MonoGame extension that ties in with MonoGame.Extended and other MonoGame libraries
Enables a list of all community users to be exported to a CSV file
Provides extensions to modify link targets in user-generated content