There's also the Lutoslawski set of variations for two pianos or piano and orchestra.
Andrew Lloyd Weber is a better composer of instrumental music than his broadway reputation credits him for. He wrote a fantastic set of these with a very unique and dare I say inspired ( and successful)Rock and roll meets classical feel which I think is very appropriate as Paganini was pretty much a rock Star. I think they are an important and substantial addition to the lot. I bought these about a year and a half ago w the goal of eventually working through and recording the set of them all as part of my long term project to get unrecorded or seldom heard performances out there on to the interwebs as I do not believe these have an extant recording for solo piano. Definitely enough there to keep dedicated chaps and chappetes busy.
Andrew Lloyd Weber
if you need some clues
shout out to my boy Ivan [Jirko for those who may have missed it]. ...unique since it is a set of variations based on a variation from a set of variations lol
I had read this when you posted it and even then was shocked that this video was not included...