Top 20 NuGet marshalling Packages

Provides high-performance Reinterpret_Cast style extension methods for primitives, primitive arrays and strings. Allows you to convert from bytes or to bytes faster than any thing in .NET through a generic API. Fastest and most generic conversions to and from bytes.
A port of BeanIO targeting .NET Standard 1.1
A simple serialization library written entirely in C#. There are no native dependencies, so that it can run on any architecture.
.NET library to write X86 asm, patch code at runtime, and marshal complex unmanaged structures.