Not all SonarQube Plugins are available in the Marketplace. Sometimes it is required to install a plugin manually by copying it to the $SONARQUBE_HOME/extensions/plugins folder.
Is it possible to install a plugin manually in SonarCloud or into SonarQube for Azure DevOps?
On SonarCloud, this is not possible to customize plugins, but it’s on our backlog to be able to customize the features.
On SonarQube, you can use the Marketplace to add any available plugins.