Top 20 NuGet stemmer Packages

Porting of snowballs stemmers to .NET Framework
Stemmers for 12 languages and one default stemmer. The default stemmer (DefaultStemmer) can be used for languages that not are supported. The default stemmer does not do any stemming at all. Supported languages: Danish, Dutch, English, Finnish, French, German, Italian, Norwegian, Portuguese, Romani...
Contains Snowball language stemmers for C#/.NET. This package is part of the Accord.NET Framework.
Low-allocation version of Snowball stemmers.
Stemmer binding library for Bridge.NET projects.
Generator of lemmatizers for several European languages
Wrapper for Mystem. Mystem - fast morphological algorithm with unknown word guessing. The algorithm developed by Yandex
Porting of snowballs stemmers to .NET Standard
Стеммер Мартина Портера на русском и английском языке. Англоязычная версия работает на основе Nuget-пакета "Porter2StemmerStandard".