Mozart K448 "Sonata for two pianos in D major", a common track in concerts, sounds good. I have only written this one for two pianos in my life.

Mi Yue's coward

Rhapsody in blue in Gershwin

All Beethoven symphonies adapted by Liszt are arranged for two pianos.

Planck's Concerto for Two Piano

Double piano scores of various piano concertos, such as Mozart, Beethoven, Chopin, Rachmaninov, Planck, Shostakovich's Iron and Steel Association, China's Yellow River, etc. ....

It is recommended to play the first movement of Mozart's double steel sonata in D major, which is good to listen to and practice, and the length is moderate.