SonarSource 

Analyzers that spot Bugs, Vulnerabilities and Code Smells in your code. For an even better overall experience, you can use SonarLint for Visual Studio, which is a free extension (https://www.sonarlint.org/visualstudio/) that can be used standalone or with SonarQube (https://www.sonarqube.org/)... More information

The SonarScanner for .Net Core from version 2.1 allows easy analysis of any .NET project with SonarCloud/SonarQube.

Analyzers that spot Bugs, Vulnerabilities and Code Smells in your code. For an even better overall experience, you can use SonarLint for Visual Studio, which is a free extension (https://www.sonarlint.org/visualstudio/) that can be used standalone or with SonarQube (https://www.sonarqube.org/)... More information