If GSnap doesn't fit your workflow, these free plugins also offer excellent pitch correction within the Audacity environment:
Auto-Tune is a software plugin developed by Antares Audio Technologies that corrects pitch imperfections in vocal and instrumental performances. It uses advanced algorithms to analyze the audio signal and make subtle adjustments to the pitch, creating a smooth, polished sound. Auto-Tune has become an essential tool in modern music production, used by producers and engineers to enhance the sound of vocals, guitars, and other instruments. auto tune for audacity exclusive
To use these plugins, you must manually place them in Audacity’s directory: How to Install Autotune Plugin in Audacity | Tutorial If GSnap doesn't fit your workflow, these free