There are a ton of Mozart Violin Sonatas out there and I’ve posted all of them below but you can also see them individually at IMSLP, or the Neue Mozart Ausgabe, where all of Mozart’s works, analysis of editorial issues and other scholarly stuff is cataloged.
The earlier K numbers in the set of sonatas were (as would make sense considering the catalog is based on the chronological order of the works written by Mozart) written at a very early age, when Mozart was barely a pup. Accordingly the music is extremely simple, with the violinist playing an accompaniment role to the piano (I’m sure these works get played even less because all the diva violinists hate playing accompaniment). The later sonatas are far more mature, with some being written around the time Don Giovanni was.
Violin Sonata in C, K6
Violin Sonata in Bb, K454:
**Warning Big Files**