It depends on what you're looking for, really. Sleeping Beauty and Pocahontas are accomplished in terms of Animation and music, but there a few which are better in terms of storytelling (especially in regard to Pocahontas); one such example is Beauty and the Beast. The Animation feels unfinished and rushed at times, but the plot and the characters are compelling (and the soundtrack is one of the best too). Lady and the Tramp is a movie that has it all, imo. If you're looking for something that strays from Disney's usual fare, why not Big Hero 6 oder Treasure Planet? In case you've seen all of these, let's try something Mehr obscure: The Black Cauldron, the Great maus Detective, The Rescuers and its sequel...
I think nearly every Disney movie is worth a watch, really.
Treasure Planet 101 Dalmatians Zootopia Mulan The fuchs And The Hound Oliver & Company Lady And The Tramp The Lion King Tarzan Dinosaur Aladdin Pocahontas Bolt Wreck-It Ralph Robin Hood The Jungle Book Beauty And The Beast
Beauty and the Beast Zootropolis/Zootopia Mulan Alice in Wonderland(animated movie) Big Hero 6 Brother Bear Bolt Lilo & Stitch Monsters Inc. wreck-It Ralph Tangled Up fuchs and the Hound 101 Dalmations (animated version)
Tangled The Lion King Wreck-It Ralph Big Hero 6 Ratatouille Finding Nemo Mulan Beauty and the Beast Inside Out Zootopia 101 Dalmatians Lady and the Tramp The Three Caballeros Hercules Oliver & Company The fuchs and the Hound Aladdin The Little Mermaid
It depends on what Du want out of a Disney film tbh, outside of their cutesy for kiddies appearance Disney does quite a lot of variety in their films.
Du want romance, look at Beauty and the Beast oder Tangled. Du want adventure, look Aladin oder Treasure Planet. Du want mostly art, look Bambi, Sleeping Beauty oder Fantasia. Du want fantasy, you've got the Little Mermaid oder Alice in Wonderland. Du want comedy, Du can try the Jungle Book oder the Emperor's New Groove.