I was originally going to post this as a reply to the "Easier Bach pieces" thread, but then thought that it might be worthy of its own thread.
I know the frustration of having a limited amount of time / energy to invest in new repertoire. I'm a fairly decent player, but it often takes me a long time to learn new pieces. At age 61, on the cusp of retirement from my day job, and about to embark on my own HW build (retirement present to myself!), I'm developing a "bucket list" of repertoire. I've decided to fill in the many holes by consulting the links below. I did do the ARCT in organ many years ago, but have yet to learn, for example, any Messaien, Langlais, Rheinberger - too many tunes, too little time!
I would submit the following links which will hopefully be of help.
Royal Conservatory of Music, Toronto:
https://examinations.rcmusic.ca/sites/d ... s_2010.pdf
Trinity College of Music, London
*in a bid to survive, TCL has opened the floodgates to pop music; I'd suggest looking at page 70 and beyond for more "classical" repertoire. This syllabus takes you to Grade 8 level: http://www.trinitycollege.com/resource/?id=4697
The Associated Board of the Royal Schools of Music offers this syllabus, again, to Gr 8 level: http://us.abrsm.org/fileadmin/user_uplo ... lete15.pdf
Not exhaustive or even authoritative, but might provide some guidance to any interested parties.