Are you all the 'Omegas' on VGMusic? (UltimaOmega, AbsoluteOmega, etc.)
I still think a Drakkhen arrange soundtrack would be novel.
Another overlooked SNES title I haven't played (but heard on VGMusic) is Aqutallion (Secret of the Stars). The Kustera Field Movement stuck out to me.
I particularly like Tsu Ryu's MIDI rendition of it (though it isn't accurate):
https://www.youtube.com/watch?v=dDESF_yJUBc