Top 20 NuGet result Packages

PostSharp.Patterns.Caching: support for Redis.
Total functions made convenient for F# and C#
C# implementation of functional concepts: Maybe (Option), Either (Result), Try, Memoize
A lightweight Result object implementation for .NET
Simple functional extensions for C#. Lightweight and doesn't hold your hand.
This package contains an operation result helpers for Asp.Net Core MVC and MediatR; for example: automatic validation.
a simple execution result container for .net and .netcore
Implementation of monadic type holding a returned value or an error code.
This package contains an operation result generic implementation that should fits most needs.
Common types and helpers for represent result of some operation.
.NET library that provide mainly functional features for C#. This means concept of Option, Result, Either and ValueObject. Supported platforms: - .NET Standard 1.0+ - .NET Core 1.0+ - .NET Framework 2.0+ Supports Source Link
Implementation of validation of a ResultType.
Select partial functions made to have warnings in F#
This is some helpful classes like OperationResult. Simple wrapped for result operation for any returned data
AsyncResult and Result computation expressions and helper functions for error handling in F#.
Retrieve success or failure result from everything.
"Either" Monad-like Implementation for dealing with operation results in C#
This library offers an elegant and efficient way of handling errors known as railway programming.
Multiple ASP.NET Core utilities, including email, configuration, access to HTTP headers, etc.
Adds Railway Oriented Programming to C# by making use of LINQ syntax.