Top 20 NuGet common Packages

Kode-Aid shared common library.
Provides infrastructure for common error handling, tracing, configuration, and HTTP/REST-based pipeline manipulation. The package also exposes the CloudContext type, which enables centralized discovery of available Microsoft Azure libraries.
.NET library with common methods for some usual calendar calculations
Applied migrations for "database first" approach. Migrations are stored in appSettings.ScriptsDirectory, use appSettings.ScriptsConnectionString connection string name and appString.Environment for active Environment. Call as "DatabaseUpdater.UpdateDatabase(Server.MapPath("/"))" in globa.asax
Dijing.Common is a common library for .NET
A bloom filter implementation
Cosmos Date/Time extension library
Cosmos collections extension library
Cosmos synchronous and asynchronous extension library
Adds better JSON support to components from Thinktecture.Runtime.Extensions when using Newtonsoft.Json.
Cosmos Optional extension library
Cosmos Conversions extension library
Adds MessagePack formatter for components from Thinktecture.Runtime.Extensions.
DotNetCore Worker Extensions.
Cosmos core validation library
A bloom filter implementation
Laobian.Common is shared library for private usage only
Lykke common tools and utilities
Common library for the sensenet platform containing storage and configuration-related components.
Cosmos abstractions library