List me a couple instead of 1. I need an upgrade as the student tenor isn't enough anymore.
Trigger trombone? As in a valve trombone? Generally the best place to look is your local Craigslist. Otherwise, your local music stores are a good idea.
Any particular reason why you need it to be brand new? Used instruments are usually a much better idea, and as long as you can inspect it for issues and test it out, there's nothing wrong with a Craigslist horn. I've bought 3 tenor saxes from Craigslist and one new from a Schmidt Music. The used ones sounded considerably better than the new one I bought, and only had a couple scratches.
There are literally NONE being sold in my area for some odd reason. All I can find are old rusty trombones. My parents want either a cheap trombone from online or one from nearby.