D845? thats pretty good
I'd would suggest either the Allegretto previously mentioned by pianowolfi, maybe one of the Moment Musicals, or a group of the Landler.
Listen to this one and see if you like it:https://www.pianostreet.com/piano_sheet_music/Schubert-286/Impromptu-op-90-2.htmlIt says Level 7 but that's not true at all. This piece is easy, just a few right hand runs, but nothing major.