Pro Aligner is a Blender add-on from CG GALAXY built around a single task: aligning objects with a click. It handles alignment along a single axis or several at once, and it can align an object even after its rotation has been applied. Everything runs through a simple menu with a user-friendly interface.
Beyond alignment, the add-on bundles a few related actions. It can invert an object's rotation around the axes you pick. Apply Origin moves the origin to the center of an object. Apply Rotation applies the rotation and sets it to zero on every axis. Move to Center moves the object to the center of 3D space.
Pro Aligner supports Blender 3.0 through 5.0 and is listed as Blender Extension compatible, released under the GPL license. It carries a five-star rating from seven reviews and more than three hundred sales on superhive. A demo video is available for a closer look at the add-on.