I've been lurking for awhile, first time posting. Hopefully I'm in the right spot.

The time has come for my son to move from a school-owned instrument to a euphonium of his own. He's played a Willson 2900 all through school. We plan to check out the vendors at ITEC next month. Any advice on brands he should be trying? Or just test them all? It would be great to find something that will last him through college and beyond. Thanks in advance for any insight!