I actually spent years of my life playing a trumpet and would have to agree absolutely with Gardibolt If you fancy something that sounds like a Sax, the obvious choice seems to be a Sax...

Still B flat trumpets are by far and wide the most common, stick with that if you fancy some hot brass action.

Enjoy, at first you will wonder how in gods name people manage to do anything with a brass instrument but for some inspiration just listen to a few military brass bands and tell me they don't amaze you :)