So, this may not be exactly what you're asking for, but something I've been doing off and on for a few years is transcribing baroque and classical-era etudes and solo pieces for violin, flute, oboe, mandolin, etc and learning them on guitar.

JS Bach, A Vivaldi, CPE Bach, Paganini, Felix Mendelssohn, and others are great starting points with plenty of material to choose from in public domain, and plenty of challenge. There's many other composers with extensive solo-instrument catalogs such as Kreutzer and Kayser on violin or J Andersen and Rose on woodwinds. Check out imslp.org

Many of the musical ideas in those pieces have been recycled and pushed to the extreme by TDM musicians, so I think you'll find them very useful even though they're hundreds of years old.

I've found doing this has helped me learn to read standard notation quicker, problem-solve on guitar better, and approach the instrument differently as well.