There are soooo many...
LSC 1806 Also Sprach Zarathustra Reiner and the Chicago Sym
LSC 2068 Rachmaninoff 2nd Concerto Rubenstein and Reiner
LSC 2225 Witch's Brew a TAS list standby
LSC 2285 Walton Facade great sound
LSC 2323 Tchaikovsky and Rimsky-Korsikov Capricio Italienne and Espagnol
LSC 2336 Finlandia Sibelius really nice
LSC 2424 4 Seasons Vivaldi
LSC 2436 Pines of Rome Respighi - legendary. First pressing mixed too hot for the cartridges of the early 60's so they remixed it. With modern styli it's the stuff of legends. I've never heard a 1S copy, but I've got one of the later stampers and it's still amazingly good.
There are probably 30 more...
Let me add a few of my favorites from the RCA catalog:
LSC-2201 Pictures at an Exhibition
LSC-2446 Scheherazade
LSC-2367 Rhapsody in Blue
LSC-2471 Stokowski Rhapsodies
LSC-2449 Faust/Carmen (The one I posted a few days ago)
LSC-1817 Gaite Parisienne
LDS-6055 The Royal Ballet Gala