Teaching repetoire help

[JHardisk]

Hello there tubenet:

I've recently been given the opportunity to pick up teaching a college studio for a friend for a good amount of time. I've never taught college euphoniums before. Tuba... no problem.

I've come to the realization that I know very little about euphonium solo repertoire. Is the euphonium source book published yet? Is there somewhere a list of solos and their difficulty levels? I'm only familiar with much of the rep I've heard my collegues in the past play, and that of professionals doing recital rep. I need to offer some suggestions to my students for potential rep for their upcoming studio recital/juries.

Anyone have suggestions?