Are there any intermediate piano duo pieces from Schubert?

[bonjing]

I couldn't find any of them. Most are quite hard for my level. Can someone please tell me and give me some piano duet piece from Schubert to teach for eager intermediate students?

[stevebob]

Indiana University Press makes a number of its piano-related titles freely available on its website, including Piano Duet Repertoire by Cameron McGraw, to anyone who registers with there.

As would be expected for such a prolific composer of duets, this book lists (and describes) a great many pieces by Schubert.  In most cases, mentions the difficulty level is specified as well.

https://www.iupress.indiana.edu/iol/