If you're on activated Windows 11 Home edition, you can buy Pro upgrade from Microsoft Store in around 100 USD. Go to Settings > System > Activation > Upgrade in Store app > Open Store.
Also refer:
https://www.kapilarya.com/how-to-upgrade-windows-11-home-to-pro
Let us know if this helps!
Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.