I don’t know about “best,” but my favorite is Gekkou Revenge by Franchouchou from Zombieland Saga Revenge.

And definitely not “best” but one I just like - Sanki Tousen by Manias from Akiba’s Trip: The Animation.

And potentially actually the best - the one to which so many others have aspired in later years God Knows by ENOZ from The Melancholy of Suzumiya Haruhi.